Seems like they've been deliberately vague.
"Chrome will stop supporting Manifest V2" -- ok what about other browsers?
"The 1password classic extension ... will no longer be supported" -- what do you mean supported? You mean you will pull it from the app stores, or just that you won't fix bugs anymore?
I use Firefox and 1Password 6 and I have no idea where I stand, and I'm pretty sure that's their intention.
Fuck you 1Password. I paid for a lifetime license remember? I don't appreciate the switcharoo, but what I really despise is the gaslighting.