I bought Start11 but the "StartMenuHost.exe" was still running in the background, taking about 80Mb of RAM and doing random web requests, I had to takeown the directory and physically remove the file, because it was being restarted by a system service even if you killed the process.
They still have a thing called "TextInputHost.exe" which takes about 90Mb of RAM and if you kill it all store apps (including Terminal) stop taking keyboard input. It too makes network requests but I can't get rid of it, so had to firewall it instead. But that's just nasty AF: keyboard input works just fine in win32 applications, so you clearly don't need a resident 90Mb network-connected process to get it to work in UWP, you're just being sneaky...
They still have a thing called "TextInputHost.exe" which takes about 90Mb of RAM and if you kill it all store apps (including Terminal) stop taking keyboard input. It too makes network requests but I can't get rid of it, so had to firewall it instead. But that's just nasty AF: keyboard input works just fine in win32 applications, so you clearly don't need a resident 90Mb network-connected process to get it to work in UWP, you're just being sneaky...