It took me like a week to download what I think is all of them from a decent cable connection. I do intend to watch this but it's going to take me like a year given that I have a job.

However, I'm very privileged in a sense. I get to watch them for the first time. How many fans would love to rewatch episodes for the first time?

Does that include all the animated stuff, do you know?

If you're looking for a way to start, Next Generation (TNG) is a good entry point, though you might want to start with season 3 (it's when it really started to feel polished). If you like that then Voyager is similarly episodic and easy to watch, though the writers could've treated some of the characters a little better in that. Modern episodic trek is Strange New Worlds and Lower Decks, also both immediately fun and easy to get into.

Deep Space 9 is what started trek on having longer serialized arcs, and Enterprise also has long story lines (the entirety of season 3 was one arc).

And I'll probably get some disagreement for this, but despite having grown up on trek and watched almost everything that's out there (I think I just have 1 or 2 seasons of Discovery left), I've never really been able to watch much of the original series. It just feels way too dated for me. Maybe if the guys over at the Greatest Generation podcast pick it up I'll try to work through it.