Oh, I'm not asking how to download videos. I use Seal. I'm just pointing out that what OP said is true. There is a download button in the native YouTube app. (And, for the record, I don't need an alternate YouTube app, either. I already have an alternate.)
It does have a download button in the Android app, but tapping it tells you to get YouTube Premium.

Me when I finish catching up on That Time I Got Reincarnated as a Slime's English dub after getting addicted to it.
- 79 episodes of the main series
- 12 episodes of the spin-off slice-of-life series that's canon to the main series
- 5 OVA episodes
- 3 episodes of the mini-series
- 1 movie (the other movie isn't on streaming yet)
And it only took me 12 days.
And at least the first two were right.
Social media without limit has caused a whole slew of issues that are still being studied. And, while the early days of the internet were great, ever since at least the late 2010s, it's been largely downhill.
Those humans used AI to answer the question. /j
"Before I answer your question, have you heard about today's sponsor, Raid Shadow Legends?"
So 4 ½ days, right? Right?
Remember that guy that made that highway exit sign in California? https://youtu.be/26-4oARwfF4
They have said they're adding an off switch for all their AI stuff in Q1 next year. We'll see how well it works, though.