Just found a new alternative app store for those phone degooglers among us: https://github.com/ImranR98/Obtainium
Really cool because it goes back to obtaining the app directly from the developer, something the unfortunately failed SkyNet was also aiming to enable.

So far I used Droid-ify pretty happily as it is the only one with decent caching and UI, but it had issues verifying signatures recently and updates on F-Droid are often significantly delayed.