Well, every year has been "next year will be the year of Linux on the
desktop" for 20 years at least, but it's still Microsoft who rules in
spite of EULAs and privacy agreements that have moved from insolent to
raving madness.
At any rate, they have strongholds and not so strong holds.
Being owned by Microsoft will have technical consequences, but it will
also have legal consequences. The usage conditions will become more and
more absurd and people will grit their teeth and continue while
Microsoft sells all their private data to whoever wants to pay for it.