I wish they'd specify if the bootloader was unlock/relockable. Could have been cool to see GrapheneOS support.
It's a MediaTek SoC, so the Linux experience will be Bad to say the least. This thing will be running the oldest kernel possible with all kind of nasty vendor hacks.
This device misses some of the requirements for GrapheneOS. It wouldn't be as secure as a Pixel.
Just get a Pixel with GrapheneOS and put one of ZitaoTech's USB-C BB keyboards under it (or get a BT one).