The latest trick is they ignore the default choice completely and open all links in Outlook in edge anyhow, also they are sending notifications saying to use edge or get less battery time.

Official client list https://matrix.org/ecosystem/clients/

As far as I’m aware WS is pretty close to what you get by just using virtalbox (with an easier setup) so you could do that on Linux. With Linux you also have more advanced solutions though like https://en.wikipedia.org/wiki/Qubes_OS

Mastodon servers that have suspended Threads.net