Thanks. This was easy on Windows 10 versions 1809 and lower as you can use a blank icon with customizergod to blank out icons. Sadly customizergod doesn't support versions 1903+. For the taskbar though you can set the taskbar to use small icons and use:
Some icons may persist though.
Is there a way to get the round corners hack on Nemo? Also, I was thinking of changing the colors of the nemo theme in the .msstyles file. Would you recommend any particular program to edit it?