Call it hate if you want, but it is an intentional design decision to break compatibility with other DEs. That is a choice they consciously made and have been very clear in communicating. There are trade offs involved. I’m not saying it’s a completely irrational choice or anything, but it is aggravating for those of us that don’t use Gnome when we have to deal with libadwaita apps. Libadwaita is designed from the ground up to be a Gnome exclusive thing. It is not for Linux. It is just for Gnome. That is the developers’ stated intention.