Here's the really bitter pill we need to swallow to start moving past monopolistic capitalism: there is no replacement for Amazon, Github, Twitch, and Google. Period.
Their ease and usability are the result of monopolistic privilege.
The things they do are technically, logistically impossible without a trillion dollar mega-corp doing them. For the average use-case, your QoL will drop, significantly, moving to a smaller or self-hosted solution.
You need to accept that, and do it anyway.