Whoa! That's a gigantic Flatpak. I like FP because I can centrally managing app permissions with flatseal. I also like it when installing apps that have x86 libraries that I didn't want to install on my x64 only box. Not perfect, but it's nice also installing apps that only live in userspace and didn't touch my core os files. I like to to keep system and userspace separate. It's also nice to uninstall and remove everything associated. Pro-tip: try to only install flatpaks from original app devs if you can.