Ubuntu built the snap store package Eco-system. The Snap store help to distribute your Linux base application and software across the Linux distros.
For checking the binary, you do not need any command. You need only two things. First is a web browser and a mouse.
There is two binary support by raspberry pi 4. first is
If one of the binary is present, you can install the package in your raspberry
pi 4 without any problem.
There is two way to check the package binary is available for raspberry pi 4 or not.
Firstly, you click on the version drop-down list and click again to show the architecture drop-down list and check all available binary forms for the list.
In a second way, you scroll down the page, go to the Linux distribution section, and check all the Linux distributions.
I hope my article solve your problem if you have any problem and then comment in the comment section.