There is still no Linux app store
To be clear, I’m not complaining that we don’t have these aforementioned applications on the Linux desktop. That’s not the point. The point is “we” still don’t have a robust way for developers to monetise their application development work.
Most desktop Linux users run Ubuntu. Followed by others you’ve likely heard of like Arch, Fedora, Manjaro, SUSE and friends. Most users of these desktop Linux distributions have no baked-in way to buy software.
Similarly developers have no built-in route to market their wares to Linux desktop users. Having a capability to easily charge users to access software is a compelling argument to develop and market applications.