This really makes Samsung Exynos chips with Mali GPUs appealing for Linux use, and hopefully when Exynos with RDNA2 comes out, support will be great there as well. I'm not really seeing Mali GPUs and unlocked bootloader phone options in the US (other than the PinePhone), but I'll have to look more another time. Thanks Collabora!

edit: The Dimensity SoCs also have Mali GPUs, but no US phones options as far as I can see.. https://www.anandtech.com/show/16436/mediatek-announces-dime...