Anti cheat forces most people to still run windows for a number of games

Not really in production though. Anything serious runs on esxi if it’s on prem servers. Maybe this will change that, but I doubt it.

You just need to “hard match” the existing AD accounts with the 365 accounts, using immutableID. Use connect-msolservice cmdlet in PowerShell. immutableID ties the AD object to the 365 one.

Heads up though, you may run into issues if the usernames don’t match. This may be time consuming if you have tons of users, but I know of no other good solution