They should be able to put memtest on the boot partition and then break to an EFI shell on boot and Ioad it manually.
There will be a bit of swearing and googling required but it’s doable in a way that doesn’t mess with the current boot arrangement.
Especially after all the spam on Facebook like:
“RANDOM_FRIEND wants to get in touch with you on Threads™!”
“RANDOM_FRIEND just posted something on Threads™! Check it out!”
Etc etc
And then the interleaving of Threads™ teaser posts amongst Facebook posts with half a sentence and then “…” and any interaction with it prompts you to join threads so you can read the rest of that sentence that hooked you in…
Or the “easy and fun™” way that every Instagram account has a Threads™ account just waiting to be activated by you.
I wonder how much of a user base they would have without all the jamming it down user’s throats.