I have been trying to find a how-to or article which explains installing add-on .zips in Linux. I am using Ubuntu 20.04. It seems that there are a lot of add-ons available at Blender Market, like "Construction Lines" which only come as a .zip, but you can only see this after you have purchased. It seems the .zips don't install into the Ubuntu installation. Are they thought to work? Am I just doing something wrong? Is there a divide in the community or processes for making blender add-ons for Linux vs Windows? There doesn't seem to be much written about this, so I am thinking that I am just doing something wrong and perhaps it's supposed to work.
Avoid using distro packages since they don't usually work well. Grab the binary from the website unzip it and double click on the executable to run it.