We use Ublock Origin and try to compress the RAM as a virtual swap everywhere.
Chrom* based browsers have optimized switches for low end machines, starting with --light, that's it, append that parameter to your desktop shortcut and things will speed up a bit.
Using the web today without UBo today it's suicidal.
I have 8 GB on my old Surface Pro running Windows 10, and it works perfectly fine for browsing, office work and most lighter programming tasks.
What normal users don't use browsers?