At work we have to run Microsoft defender on Linux. Seems pretty good. I don't even notice it.
Was this irony, or has the world become even weirder?
Nope, it's definitely the latter. Microsoft released a version of Defender for multiple platforms including: MacOS, Linux, Android and iOS. IIRC there's personal and enterprise editions both linked to 365 through "Microsoft 365 Defender".
I really can't imagine it doing much especially on iOS, it's there for the security checkbox/policy I guess.
Sources: https://learn.microsoft.com/en-us/microsoft-365/security/def... https://learn.microsoft.com/en-us/microsoft-365/security/def...