Yes, but LD and SNW are both Star Trek. Everything in LD is canon.
Galaxy Quest is not Star Trek. It doesn’t involve any Star Trek aliens or ships. It’s just a really fun parody.
And while we’re on this subject, I also wouldn’t like a crossover with The Orville. It’s originally a parody and later a tribute to TNG. Let it stay that way.
I’m just not a fan of big shared multiverse things like this. I think it cheapens both originals.