I recently bought the TUXEDO InfinityFlex 14 which is a 2-in-1 as you describe. Well, they call it a 3-in-1 because you can fold it in such a way that you can stand it on a table and watch movies on it which is a bit silly to call a 3-in-1.
Anyway! It works very well. TUXEDO OS is bascially Ubuntu but they put the latest KDE Plasma on it which has much improved tablet mode support compared to Plasma 5.27 that Kubuntu 24.04 comes with. I really like it. You can install it on non-TUXEDO laptops too like yours. I mainly use tablet mode to read books or browse websites in a more relaxed pose on the sofa.
There’s a touch keyboard too which works well enough if you need to type a sentence here and there but for anything more than that you would revert to laptop mode.
While true regarding open source vs closed course. The risks are quite large for patients. For example, a few years ago there was a company called Second Sight that made artificial eyes so blind people could partially see again. Then the company discontinued the product and now they are stuck with an unsupported surgically implanted device that they rely heavily on but can break any time. It’s pretty risky to have something implanted if you don’t know if the company will be around in a decade or so.