Use of most plastic bags are banned in my state, though the high court reversed some part of the government order.
People bring cloth bags to shops when buying stuff, though plastic bags are still used in some places. I thought this was common in many countries :(
Standard notes is available as appimage from their website, as a snap on ubuntu and also as flatpak on flathub. How did you install or run it? Also, please don’t equate ubuntu with linux, unless you had troubles installing it on other distros as well. It scares away other people trying to move to good gnu+linux distros (like linux mint, fedora, etc).