Vendor lock-in?
Honestly, it could have been worse.
On the plus side, unlike the permanent shackles of M365 where most companies wouldn't allow it to be ripped from their cold dead hands - even if MS tripled the price - you can vote with your feet on this one.
Minus side? Price is up - but in the current environment what hasn't?
And, they are more transparent than most - so we should give kudos for that at least.