I was able to use software that I installed without a problem for years, but now Gatekeeper makes installing software from outside of the Mac App Store a chore for little to no gain.
I’m curious what this complaint is about, since the only thing I’ve experienced is an annoying pop up window that you must approve similar to what one gets in Windows.
If the developer didn't pay Apple $99/year and also notarize their software, you need to jump through settings panes to launch the application "for your own good".