The App That Opens Apps.
Free from Mothers Ruin Software, since 2020.
Version 1.5.1 is out, and gives you the minimum macOS version requirement at a glance.
More info at https://www.mothersruin.com/software/Apparency/update.html
indieapps.space is dedicated to hosting accounts for mobile and desktop applications developed by small, independent developers and development teams (no personal accounts, please).