There’s a less capable Mv3 port of uBlock Origin by the original developer, called ‘uBlock Origin Lite’: https://chromewebstore.google.com/detail/ddkjiahejlhfcafbddmgiahcphecmpfh
I use Chromium only very rarely, so I don’t know how effective it is, though.
It’s either this fairy tale, or its flip side, the myth that ‘private vices’ somehow add up to ‘public virtues’.