For anyone reading https://arstechnica.com/gadgets/2024/07/loss-of-popular-2fa-tool-puts-security-minded-grapheneos-in-a-paradox/ on Android/Play Integrity and finding my reddit thread linked in it (https://www.reddit.com/r/LineageOS/comments/1e8m2a2/comment/ledtg3a/) you might want to check out my better thread on the subject: https://www.reddit.com/r/LineageOS/comments/n7yo7u/a_discussion_about_bootloader_lockingunlocking/