He’s actually right about this one despite the down votes. Hydrogen fuel cell vehicles are electric vehicles that use elective motors not engines so there are no oil changes.
The difference is that a fuel cell vehicle captures electrons during the reaction that takes place when hydrogen is exposed to oxygen (they bond to from H2O) rather than storing energy in batteries.
So battery electric vehicles store their energy in a battery while fuel cell electric vehicles store it in the form of hydrogen but ultimately electricity is was powers both of them.
TLDR: Ubuntu Pro offers additional security patches to packages found in the universe repo. Universe is community maintained so Ubuntu is essentially stepping in to provide critical CVE patches to some popular software in this repo that the community has not addressed.
I suppose it depends on how you look at it but I don’t really see this as withholding patches. Software in this repo would otherwise be missing these patches and it’s a ton of work for Ubuntu to provide these patches themselves.
Now is they move glibc to universe and tell me to subscribe to get updates I’ll feel differently.