No I do not use Proton wallet and I haven't tested. Not sure if I really have interest in it. Is really weird and not really handy to link a wallet to an email. I like to keep that totally separate.

Even for LN addresses, I like to use decoy ones (not my real private domain names). LN addresses with my own domains are strictly for personal private use, not public. For public use the custodial ones are just fine and a perfect decoy.