GrapheneOS is the only Android OS providing full security patches

Why was it that in the early PC days, IBM was unable to keep a lid on 'IBM compatible', allowing for the PC interoperability explosion, yet today, almost every phone has closed drivers, closed and locked bootloaders, and almost complete corporate control over our devices? Why are there not yet a plethora of phones on the market that allow anyone to install their OS of choice?

You're getting a lot of indirect responses. If you've ever tried to mod your android phone the answer is simple. Its google play services and hardware attestation for things like banking websites.

Its really easy to make a custom rom but hard to do serious "real life" stuff; companies don't want to make it easy. To most regular users, if they cant download apps from the google play store, and they can't use venmo\cashapp, then the OS is dead in the water from day 1

Yeah but lots of phones you can't get ROMs for from a reputable source, and I sure as heck don't have the know how or time to build one, even if possible, which a lot of times is not due to locking down bootloaders, drivers, etc.

But that has the same cause.

When you buy a Windows PC, the first thing a lot of tech people will do is format it and put on a clean install of Windows without all of the OEM crapware, or in these days install Linux if grandma is just using email and Facebook anyway.

If you try to do that on your Android device, your bank app is broken, most importantly not because of anything the alternate OS is doing wrong, which causes the vast majority of people to not want to do it even if it means suffering the OEM crapware, with no way for the alternative OS to fix it. And that in turn allows the OEMs to get away with locked bootloaders etc., because then they're not losing sales to a competitor that lets you remove the crapware when nobody can do it either way.

For me the bank app was working, but the electric scooter app didn't and that was it for me :( Damn e-scooters, can't live without them.

But I still haven't contacted the support to ask them to verify phones in another way.

Be sure to leave them a one-star review, and maybe name them here so others can do the same.

Anyone who does that sort of crap deserves at least that tiny bit of punishment for it.

You cant rate it without google play app playstore lol