Users should not put up with this kind of thing, no matter what
OS. Forced updates, online startup checks...all unacceptable in
my opinion.
Imagine no car or train in the region starting because of a
server outage. People would riot on the streets. But for some
reason in the IT world this kind of crap is marketed as a
feature.
Do you know of a Wireshark filter that will reveal this on Ubuntu? What you're saying doesn't sound credible, but to incentivize, here's the bet:
If you can provide a Wireshark filter that will show a certificate check on a vanilla Ubuntu 20.04 system when the following commands are executed in a bash shell, then I will donate $25 to a charity of your choice. Commands follow:
Linux does provide application-level and per-application security, as well as sandboxes, but they exist to help the user and the user has complete control over them and their system.
The comment you are replying to states other OS' do not have this failure mode so your response is quite the non-sequitur, nevermind of questionable veracity (linux).
And people somehow still love their macs...