Sorry, that comment is solely based on "desk-study".
I've heard lots of positive and some negative about Linux Phones---and I do want one so bad. I think many of those comments come from Pinephone users who are happy with the device, but upset with battery life, camera quality, other nitpicks, etc..
The Librem is often reported as "overpriced".
And you are using this as your daily driver? Clearly my information is out-of-date.
UPDATE: I just watched some recent videos and read a couple of recent reviews. The librem 5 looks and works great. I guess I'll start putting some money aside.
Why is that? I'm happy with my Librem 5, and all apps OP needs should work on it, including those from F-Droid.