I blame Linux distributions for not updating when the security vulnerability has been fixed for years a little more than I blame Microsoft for untrusting old vulnerable software versions. That said, failing to figure out if it is dual booting or not when there are multiple ways of doing it was not really a surprise.

(I also remember when some Fedora ISOs were unbootable immediately after release a few years ago for similar issues, they hadn’t updated shim or similar)

Grub has already been patched, that doesn’t mean distributions shipped it. SBAT broke systems that hadn’t been updated.

It’s a lot better in uefi, MBR dual booting was always sort of hacky.

No. You can have more than one EFI system partition with separate bootloaders on each drive and set their boot order in the BIOS, just like booting from USB or anything else.

This is also possible with just one drive. The efi boot entries for each OS are stored separately in the efi system partition.

Making a donation to a campaign that the majority of Californians voted for is unforgivable.

Normal based on what? The ads exist because plenty of normal people use them to decide where to buy things or certain items. If they didn’t bring people in the stores wouldn’t bother.

Yeah this guy’s nuts, everyone knows it’s self-cleaning.

I’ve never seen it with the x equals up front. It works much better when it starts with -b.

Do you regularly use their ads to compare prices and select what to buy at each one, or generally stick to one place with a few trips to another one?

I think you explained it fine, it just doesn’t make sense to people who only go to the same place.