OK, I somehow managed to register with Mixin and download everything that is needed for testing, so I decided to send my application for review.
I do like the idea of Multisig but let's see how this Mixing setup works in my real life testing.
Question for cedricfung:
Some people in my local board are not sure what wallets are supported except ones mentioned so far (Ledger, Bitcoin Core, Bitbox, Coldcard, Mornin key, etc), so can we get a full list of all supported devices/wallets?
Is Trezor hardware wallet supported?
Thank you

The wallets listed are the only supported so far as I know, and only Bitcoin Core, Ledger, Mornin Key have been tested. And I'm sure Trezor doesn't support the miniscript feature yet, so not Mixin Safe compatible.