[Solved] I'm dumb, bitcoin core eventually opened the wallet after an hour. No password/passphrase though. But, I keep this wallet in an encrypted mount with veracrypt so it is kinda safe.
I should move all the BTC in this wallet to a new wallet though right? A safer one? Any suggestions?
Ah, well. I am glad you solved it.
Not sure whether you should or not! If you have a hardware wallet I guess it is an option.
But if that money remained safe all this time there with no problem, I guess it is okey unless your computer is compromised in some way.
Enjoy your BTC!