It was useful, I used the commands showed below, Thanks @BBCI, @lmmx @AngryMods, It Works on LM 20.2 xfce 64 bit ! wow 2022
Running Mint 20.1 xfce 64bit, Installation hangs when trying to install, just delete the /etc/apt/preferences.d/nosnap.pref using this command $ sudo rm /etc/apt/preferences.d/nosnap.pref then $ sudo apt update reopen software manager and try to download snapd again. IT WORKS!!
I used it on Xubuntu, not a problem, then I went back to Linux Mint Cinnamon 20.04 the latest, could not use youtube dl, would just not work not matter what , cut a long story short I used snap youtube dl and it all now works fine. It worked in this instance.
No complaints, used it for LXD installation, very nice. The official guidance to install snapd (via https://community.linuxmint.com/software/view/snapd) is `sudo rm /etc/apt/preferences.d/nosnap.pref; apt update; apt install snapd`. This removes the lock places on the snapd installer so that packages don't install it as a dependency. I have backed up the `nosnap.pref` file here in case you want it back after deleting: https://gist.github.com/lmmx/0550cfc8867eb1eea04076ec69c95a5a
You can enable snapd on the LMint 20 and install it using those commands: $ sudo mv /etc/apt/preferences.d/nosnap.pref ~ $ sudo apt install snapd
bug: installed a snap package and two menu items were created for it. Deleted one menu item, and because the menu editor is buggy, both menu items were deleted. Tried restoring menu to original config, but the snap icon failed to reappear. Tried uninstalling and reinstalling snap package, and still no menu icon.
Serves a purpose. So, ok, it's great if you have a problem with dependencies in installing some software. Deb/PPA would always be preferred installation for me to keep the system integrated and streamlined (you don't want to be installing the same software several times, which potentially you are doing with snap packages). However, there are times you just can't easily install software in another way, so it serves a useful function and works well. One important point is that it creates several small partitions on your hard drive to operate, so if you want to get rid of it completely 'remove' isn't enough, you must 'purge'. A short comparison of deb and snaps is here https://snapcraft.io/blog/a-technical-comparison-between-snaps-and-debs