anaxma There are new daily builds that looks to be completely fully arm64 now. For those who want to be Rosetta 2 free, you can try out these builds and check if it solves your problem.
Continuous Deployment = https://staticsint.teams.cdn.office.net/production-osx/1.5.00.23552/Teams_osx.pkg which was grabbed from https://github.com/ItzLevvie/MicrosoftTeams-msinternal/blob/master/defconfig#L8
Exploration = https://staticsint.teams.cdn.office.net/production-osx/1.5.00.23502/Teams_osx.pkg which was grabbed from https://github.com/ItzLevvie/MicrosoftTeams-msinternal/blob/master/defconfig#L17
What's new:
• Core Audio Driver has been updated from 2020.42.00.9 (old) to 2022.31.01.1 (new)
• <hostArchitectures> in the Distribution file has been updated from <hostArchitectures="x86_64"/> (old) to <hostArchitectures="arm64,x86_64"/> (new)
Production and Preview builds both use 2020.42.00.9 (old) and <hostArchitectures="x86_64"/> (old)