Pretty sure Brave shields isn't based on an extension API so it shouldn't be affected.

Have people actually noticed worse performance from uBlock Origin lite?

This article isn't nuanced enough. Ad blockers will continue to work.

I'm still confused about what makes uBlock Origin Lite less powerful than uBlock Origin. I don't use it or Chrome in any case, but I would prefer to understand the difference.

I have noticed it to be slightly worse, mostly on "bad" sites. Just using Brave at this point though.

I mostly use ublock origin light on my work laptop for YouTube and I've never seen an ad.