The future is bright.
taproot channels as proposed in the extension bolts uses Musig2; there’s ongoing work to prove that you can use FROST for one of the keys in a 2/2 Musig2 sig and it still be safe
cc nostr:npub1tr7ndmjkguzupvqhn9clasx4r08q2sklhal4g60844nsnnalw0tqpwnc05 and his team won 1st at nostr:npub1dwah6u025f2yy9dgwlsndntlfy85vf0t2eze5rdg2mxg99k4mucqxz7c52 this year in Austin with their project doing this (assuming security is safe)
Discussion
If you lost your key (hence the need for FROST) where is your channel backup? I can't quite understand how FROST works in this use case given that.