He is the 2025 European Figure Skating Champion in men's singles and is the first Swiss man to win the title since 1947.

[2] Coming from a family of athletes, Britschgi's mother is a former competitive ice dancer and his brother is a soccer player.

With this placement, Britschgi was able to secure one spot for Swiss men's singles skating at the 2022 Winter Olympics.

[7] At the 2021–22 Swiss Championships, Britschgi won his third national title and was subsequently named to the European, Olympic, and World team.

[7] At the 2022 Winter Olympics in Beijing, China, Britschgi managed to qualify for the free skate segment of the competition after placing twenty-fourth in the short program.

[7] Shortly prior the 2022 World Championships, Britschgi tested positive for COVID-19 and was forced to withdraw from the event.

[7] Shortly before the 2022 Grand Prix de France, Mikhail Shaidorov of Kazakhstan withdrew and Britschgi was called up to replace him.

[14][15] At the 2022 Warsaw Cup, Britschgi won the bronze medal after skating a clean short and free program, scoring personal bests in the process.

[16] Competing at the 2023 European Championships in Espoo, Finland, Britschgi placed fifth in the short program after fall on his quad toe loop attempt.

[16] However, he managed to perform a near perfect free skate, placing third in that segment of the competition and winning the bronze medal.

His bronze medal was the highest finish for a Swiss skater of any discipline at the European Championships in over a decade.

[17] At the 2023 World Championships in Saitama, Japan, Britschgi placed ninth in both the short and free program segments of the competition and finished in eighth place overall, scoring a new personal best free skate and combined total score in the process.

's top ten finish guaranteed two spots for Swiss men's singles skaters at the 2024 World Championships.

His total score of 263.43 would have been sufficient to win the gold medal at the 2023 Skate Canada International the prior week.

[18] In between Grand Prix appearances, Britschgi competed at the 2023 Warsaw Cup, winning the gold medal, his first Challenger title.