I'm as little reliant on proprietary services as possible and I'll jump to Linux mobile (having used a pinephone for one year as my main phone, I know it'll be comfortable for me) when a convincing phone that's not very expensive given the outdated hardware it has and that doesn't rely on an Android base can run it smoothly enough, but that phone doesn't exist yet.

Alternatives include not having a smartphone but the network effect and the expectations on you having one are quite strong.

The Fairphone 5 I have is very close to run PostmarketOS well, I have hope but for now few but critical features are missing.

that to me is what de-Googling is. I'm not trying to hurt their marketshare.