Linux

I think a script with apt/pacman/dnf etc., flatpak update can do the job as well?

IMO its against the unix vision to extend apt to manage flatpak as well.

No need to overcomplicate things, just write a small shell script or even just an alias. I use this daily:

alias get-rekt="sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y && flatpak update -y && flatpak remove --unused --delete-data -y"

adjust accordingly for Fedora and/or snaps. Obviously doesn't work for appimages or manually compiled stuff which should be a last resort if there's no other sensible way to install stuff.

edit: voyager shat the bed with the code block but you get the point

I'm using MX Linux and don't use any flatpak or snaps, only good old debs

emerge -uDN @world

...and head to bed for me.

Fedora updates flatpaks automatically, system updates too, but you need to reboot. Which Fedora version do you use?

I use very minimal software and usually don't care about Flatpak

I use BAUH as a GUI "update everything in one click" does repos, aur, flatpak, snaps, appimages. Paru is CLI option for repo, aur and flatpak. I dunno if it does snaps never checked.

100% agree with you OP.

I use one command to upgrade the whole system: paru one one system and yay on the other laptop.

Perhaps a small bash script to iterate through all of the package delivery mechanisms' for updating everything?

I get 99% of my packages via nix and the other 1% through appimages which I can put anywhere I like on my disk

🎶That's why i don't like and use flatpaks, snaps and appimages 🎶

If you want a single command, consider topgrade. Not sure if it supports Flatpak and Snaps yet, as I do not use those (yet).