I had been doing this since long time and I am super comfortable with this as most of the websites that I come across does not need JavaScript to function.
Even for the websites that need JavaScript and I need them, I try to replace them with open source apps and clients.
You can list the websites you use and require JavaScript and I can give you alternatives if you want.
Happy to help you.
Umatrix did not get updates since very long time, is there is a active fork you use?