It's good to have this feature, but it is still up to the individual developers to separate the PR work in a way that can be merged "all or some and in which order". It can make organizing, reviewing and rebasing easier but a PR with repeat, broken or overriding code can screw up just the same. I guess what I mean is, don't expect it to just sort out multiple PRs that wouldn't have worked together without it.
So I'm sorry to hear about some of the problems with Linux font rendering in this article, it goes beyond my knowledge. I want to say though as a user, I have, between Linux, Mac and Windows machines over the years, literally always preferred Linux font rendering over cleartype and now even Mac not caring about lower resolutions and non-mac screens. You shouldn't need a 4k screen to get crisp and smooth fonts and sometimes even when you do they still look like shit, especially cleartype.
I love ubuntu/linux for everything. Development, games under proton or classics via lutris, emulators or sourceports. It's just mecca. My "lesser" hardware performs better than Windows 11 and I am more free to customize. This is the greatest time to be a Linux user ever, and it's only getting better.