As someone who was in a similar boat (2 decades of .Net essentially, with a lot of HTML/JS but no frameworks), I found jumping into Angular very nice in this regard.
New versions every 6 months but not with "changing things for the sake of change", actual small but incremental improvements. The documentation I've found to be great, and since it is "opinionated" it easy to jump between multiple projects and not feel completely lost.
It seems a lot of flak that Angular gets is because it is "opionated" but I look at this as a major positive.
I've jumped between React projects and have been bewildered at how different they all are.
The whole framework vs. library thing.