Found a lot of interesting softwares in there, I might make a list of interesting and potentially useful softwares I discovered
They have the sync option to update without downloading the whole package again, GearLevel does this, but that's a flatpak, there are several more options as well or just manual updates. Some of them even update themselves, if you trust the packager. And given how easy it is for random people to dump unofficial ports on Flathub I would check who made them there as closely as I do for my AppImages.