[daviddever23box]

The on-premise compute (server) market doesn't offer anything unique for Apple to contribute; they are themselves, purportedly, continuing to use quite a bit of white-box and third-party branded compute, with Linux as one of the OSes. (Disclaimer: I have not stepped into an Apple-owned data center anytime within the last six years, so any of this may be subject to change, which itself might be very interesting!)

As for the on-premise workstation market, this is long rumored to be shrinking, leaving the Dell-HP-Lenovo (DHL) triad to the spoils for Linux or Windows on commercial PCs. That dominance yields when remote / BYOD enters the fray (as Microsoft 365 and Google Docs run nearly anywhere).