Couldn't you just spin up your own instance that only consists of yourself in that case? I'm not being facetious I'm genuinely baffled as I thought this kind of custom plug-and-do-yourself-if-you-dont-like-it is fundamental to how fediverse works and is considered a "perk" of it.
Uh. That would actually solve the problem, but at the cost of having to operate that setup. I saw many people who self-hosted their instance but it seemed rather stressful dealing with some technical aspects, so initially didn't consider it.