Since others have broadly explained that you are in fact wrong here, let's address this hot take by hot take:

It's absolutely janky when it comes to its Android app support,

These limitation are needlessly imposed by google and app developers. And you are overstating the amount of the affected apps.

it's UI is absolutely atrocious

it is bare bones stock adroid but you can install whatever you want, nobody is stopping you. they don't sell UI. they sell control.

It's simply a wonky operating system.

what does does this mean. it is the most basic bare bones system you can have, that works out of the box.

an operating system built only for Google pixel hardware

they have spec reqa for their security architecture, no other phone provides the specs.

Google could snap its fingers tomorrow and lock down the ability to unlock bootloaders.

this is a valid criticism and google has shown its face recently.

GOS team is now working on trying to find OEM to meet their specs. TBD.

Prompted me to donate, they need support. They provide a solid product for anyone who cares to control software on their devices.