Bootloader unlock wall of shame
https://github.com/melontini/bootloader-unlock-wall-of-shame
Updated guide, check it before buying a phone
Over the past few years, a suspicious number of companies have started to "take care of your data", aka block/strictly limit your ability to unlock the bootloader on your own devices.
While this may not affect you directly, it sets a bad precedent. You never know what will get the axe next: Shizuku? ADB? Sideloading?
I thought it might be a good idea to keep track of bad companies and workarounds.