Yeah, Metal Wolf is a cheesy action movie filtered through Japanese lens. It’s crazy, stupid and unintentionally hilarious.
As for Gothics, I think they hold up really well as long as you can overcome a few things:
get used to the controls - they really aren’t bad but they were created when standards weren’t as established as they are now.
treat them as worlds you are a part of rather than games - it helps figure out alternative solutions to quests and avoid some unpleasant surprises (in universe, not bugs).
game world does not revolve around you - early on even basic wildlife will be a challenge, treat enemies with respect.
there’s no level scaling - some areas will be unavailable to you until you’re strong (or crafty) enough.
don’t play Gothic II with Night of the Raven expansion installed from the start - it adds a bunch of difficult enemies available from the get go and will make the game way harder if you don’t know how to avoid them.
I think some of those points might sound more serious than they really are but should make for a good primer anyway. There’s a lot to like about those games (even compared to another titan of that time, Morrowind) so I hope you have fun!