[12][14] Her parents were involved in the movement to abandon Spanish naming customs (which had the paternal surname being listed first), but could not legally do so when Bonmatí was born.

[6] In May 1999, when Spain was on the verge of changing the law, Rosa Bonmatí appeared on Bon dia, Catalunya to present the argument in favour.

Acquitted in the resulting trial, Conca was part of the case that saw the Spanish state convicted in the European Court of Human Rights for violating the Convention Against Torture.

[20][4] Due to her family's outspoken Marxist and Catalan independentist views, Bonmatí has been the subject of criticism from people of various alignments, including right-wing Spanish nationalists and socialist separatists.

[23][24] Her father noted her to be competitive and self-critical since she was a young child, and worried that she did not enjoy playing due to being too focused on achieving more; Bonmatí said in 2023 that she is "never happy with what I do because I always want more.

While in the youth sections, Bonmatí heard about the professionalisation of women's football in the United States and made plans to go there to have a career, intending to join the University of Oregon programme.

Throughout the 2015–16 season, Bonmatí played an important part in winning the championship of Segunda Division, Group III for the first time in the club's history, scoring fourteen goals.

[43] Bonmatí made her first team competitive debut at the end of the 2015–16 season during the quarter-finals of the 2016 Copa de la Reina against Real Sociedad, playing as a false 9 and providing an assist to Bárbara Latorre.

[49] Bonmatí was used sparingly her first season with the senior team, making thirteen league appearances with three starts and scoring two goals – a brace against Oiartzun.

[52][53] She came on for Toni Duggan in the 2018 Copa de la Reina final that went into extra-time and ended with a Barcelona win, her second major title with the club.

[55] Barcelona made it to their first ever Champions League final where she started the match, and despite a 4–1 loss to Lyon, she had a moment that went viral when she outran Shanice van de Sanden down the right-wing to prevent a counter-attack.

[59] Following a brief period of injury, she was substituted on in both matches of the Supercopa de España, including the final that Barcelona won 10–1 over Real Sociedad.

In the middle of the 2020–21 season, Bonmatí played the final of the 2019–20 Copa de la Reina against Logroño, postponed a year later than normal due to COVID-19 concerns.

[61] In the semi-finals of that season's Champions League, Bonmatí provided an assist to Jenni Hermoso that brought Barcelona to a 1–1 draw in the first leg against Paris Saint-Germain.

On 30 March, she scored the second equalizing goal in a 5–2 (8–3 aggregate) win against Real Madrid in the 2nd leg of the UWCL quarter-final, which was played at Camp Nou in front of 91,553 spectators.

A few weeks later, on 22 April, at the same ground in front of a record 91,648 spectators, she opened the scoring for Barcelona in the 3rd minute in a 5–1 victory against Wolfsburg in the UWCL semi-final 1st leg.

Four days later, she played in the Copa de la Reina final as Barcelona won 6–1 against Sporting Huelva to win the title.

[74] Bonmatí retained the attacking midfield role in the 2023–24 season, with captain Alexia Putellas returning but playing more as a striker to best utilise the strengths of the whole team.

Bonmatí reached the final where she started the match, but ultimately finished runner-up in the tournament as Spain lost to Germany on penalties.

[83] With a 5–2 win in the final, Bonmatí earned her first international title and was subsequently named to the Team of the Tournament for her standout performances throughout the competition.

Bonmatí started and captained the team to a victory against France, snapping Spain's run of three consecutive finals defeats at the U-19 Euro.

[89] With their finish, she earned her second international title as Spain were one of the three UEFA teams to qualify for the 2018 FIFA U-20 Women's World Cup.

[26][43] In November 2017, coach Jorge Vilda gave Bonmatí her first senior national team call–up for two 2019 FIFA Women's World Cup qualifying matches.

Later in that year, Bonmatí played in each of Spain's UEFA Women's Euro 2022 qualifying matches, ending the qualification phase with six goals.

During the 2022–23 season, Bonmatí had meetings with the federation where she received acknowledgement of the grievances and promises for change, leading to her return to the squad ahead of the 2023 World Cup.

[111] On 20 August, after Spain's 1–0 win over England in the final, Bonmatí was named the tournament's best player, receiving the Golden Ball during the end-of-tournament awards.

[112] On 28 February, Bonmatí scored the opening goal in a 2–0 victory against France in the final of the 2023-24 UEFA Women's Nations League in Seville to clinch her and Spain's second international trophy.

[113] FCF has described Bonmatí as "pure elegance" and has noted her versatility as a player, able to adapt to different positions, play centrally, as a midfielder or as a winger.

In the same article, former FCB Femeni coach Xavi Llorens describes Bonmatí as having "innate elegance in driving the ball" and being "very competitive... versatile, can play in three, four or five positions and does not lower her level.

"[114] Bonmatí sees her short stature as an advantage due to her low center of gravity that makes it hard for opponents to take her off the ball.