I find it actually slowed down in recent years. Things finally seem to settle around the React ecosystem (yes yes, Vue has more stars). I also think there are way more projects which help you get started now without having to know all the tooling around it right of the beginning.
Regardless if you are working on a project and you have to deliver then simply stick with what you know. It does not matter what is the latest shiny thing out there and in most cases it won't matter in a few more years into the project as well.
If you want to learn something (new) in the frontend space though and also build something useful, the best approach I found is to only adapt one or two new things and have most of it build on what you know (using the 80/20 rule).
Regardless if you are working on a project and you have to deliver then simply stick with what you know. It does not matter what is the latest shiny thing out there and in most cases it won't matter in a few more years into the project as well.
If you want to learn something (new) in the frontend space though and also build something useful, the best approach I found is to only adapt one or two new things and have most of it build on what you know (using the 80/20 rule).