I would prefer if instead smartphone makers were at least forced to add a tool so users could wipe the memory and install a free bootloader. And would be great

I would prefer if instead smartphone makers were at least forced to add a tool so users could wipe the memory and install a free bootloader. And would be great if they had to also provide a free OS, like postmarketos, lineage, Debian or something like that. It could be very rudimentary without a GUI, just drivers for GPS and Wifi. And they would not have to provide even security updates for that. So I would think that many companies would also prefer that.