Material UI is pretty good, nothing in GNow was reliant on the UI, they could have worked just as fine with Material UI.
Command line in general, not just Linux.Forgetting to quoteblock spaces in Windows won't be pleasant either (especially when Windows has a Sydtem directory called "Program Files".
How long ago was it? Latest LTS is 22.04, don't think just one year would make cause any major compatibility issue (but well, if it did, just one year for 24.04LTS).
Including a trial to incentivize users into paying for the software doesn't make it "built-in".