Comment by izacus

Not really - this is akin to doing a complete rewrite of your 30 year old codebase to Rust.

Every organization has their own hacks, bespoke tools, processes and hardware that has to be painstakingly replaced, reprogrammed and users retrained. In many cases, Linux alternatives don't exist so they either have to be written or processes/hardware replaced.

These are OLD organizations and none of them is really the same as any other. Legendarily, companies like SAP made their whole fortunes managing this kind of complexity.

It's just a lot of work with a lot of edge cases you've never thought of (or seen in your life) that takes years.