It's not forced, but it's a trivial upgrade if you have a basic setup. I also have a desktop where I do some hobby AI development and once in a blue moon, Nvidia drivers would break the system because of kernel upgrades.

forced? how?

I imagine they mean security support, but are overlooking LTS somehow

Appart from LTS most distros still support the n-1 release until the n+1 is released so in reality you can always do a double upgrade once a year.

But ultimately it is a moot point as major distro upgrades are barely different than the regular security upgrades. There are just more packages upgraded at once.