I mean I love linux but the biggest hurdle is that certain software/games just aren’t compatible. I use my pc for sim racing in vr a lot. With no ability to use iracing or my vr in linux I’m stuck. While I hate Windows and would prefer to use linux, I’m not going to abandon my hobby and all the equipment I have for it just to use an os I prefer. Throughout many different domains of use for a computer their are many different variations of stories like mine. Until the software and games people use can be supported in the linux ecosystem ‘good enough’ never happens. Like for basic computer use linux is already better than good enough its fantastic, it just works has intuitive user interfaces the bones of the OS are there. The problem is that many companies and software providers just aren’t filling the gap that is the needs beyond basic web browsing, media playback and, playing older/indie games without anticheat. Without the substance people expect it doesnt matter how good the bones of the system are they are gonna be trapped in windows and linux will be stuck as the outcast programmers and enthusiasts use while knowing they have to still use windows for the niche use cases they have. And time and time again, eventually running 2 systems gets tiring and linix use/adoption slows back down again.
I mean, technically, you could containerize all the elements you need. Firewall, load balancers, identity management, etc. but at that point, you are creating your companies own version of the cloud services that are generally one of the big draws to the cloud already since you aren’t directly developing and maintaining those systems anymore. Once you have made “aws lite” in container form, you can then deploy that directly to the compute instances on any cloud provider. But now you need to maintain everything like you were running on prem (i.e. more developers and network engineers again) all while paying a pretty penny to multiple cloud providers and now that your infrastructure containers need to run 24/7 instead of only having your compute resources being ran on demand your costs will skyrocket so at that point why not just move back to on prem hosting.