It won't make them any more money so it's not like there is a financial incentive for them, but they do occasionally do things just because they aren't assholes.
A steam deck beta update from the past week or two that they were working on adding support for the ROG Ally. The verge asked valve about it, and they confirmed they're actively working on making it support other handheld PCs.
OpenShell is your friend then. I haven't seen the Windows 8 or 10 menu in years except when using the text launcher to start OpenShell after I closed it.
In 7 and 8 I really liked the Gnome-like ability to just type the first few letters of a program and hit enter. OpenShell looks like I'm not the only one.