I definitely am eyeing a Linux phone but I don’t think I’ll buy one until a lot of the bugs are worked out on the next model, maybe the Pinephone Pro v2 or whatever the next one is.
Keep in mind that when it comes out, it's probably gonna take at least 1-2 years for it to be good. PinePhone Pro has been around for 1-2 years it seems and I assume it's pretty usable now. I'm not up to date on latest development, though. It's kind of a weird thing, because a few months of progress can make a big difference - something you saw a few months ago might be outdated now (if you use latest software - but things like Mobian Stable will stay the same). But overall it's a slow process.
Right now I just use stock android with all Fdroid apps, nothing proprietary at least as far as apps go. And with Rethink DNS/firewall it pretty much blocks 100% of Google’s telemetry. Seems to be a happy medium before I can switch to an alternate like graphene, e/os or preferably a better hardware linux phone.
That sounds pretty good compared to what most people do! There are also phones that run Ubuntu Touch, which uses an Android kernel I think. I don't know if that's better or worse than Graphene, though.