I switched to MyInsta just before The_dise released the beta version of Instander because it was constantly being developed. Additionally, MyInsta is based on Instander and does not have encryption in its source code. So, you can use any APK editor to see it.
FOSS app which I use -
Closed Source app which I use :( -
1.Modded
Suggestion For OP
OP You should use Florisboard beta it’s good and also Obsidian is not open source.
Used to use GNOME. But now I worship KDE.