Ubuntu software list is empty

Firstly, I am new here so apologies if this all seems a little noobish. I have just switched from Windows and started to use Ubuntu 20.04.2 LTS. Unfortunately, I have ran in a bit of a problem, for some apparent reason the "Ubuntu Software" seems to be completely blank other than the editor choice or recommended software or snaps? So, any help in this regards would be highly appreciated.

Ubuntu Software aka Snap Store shows only a few software picks on the front page and nothing more when there are access errors on snapcraft.io server, which recently happens quite often. To confirm that's the issue, you need to kill the runing snap-store process and re-run it in the terminal (see below how to do it). If you see any "access denied" errors in the output, then that's the server issue. This is a temporary problem that goes away when they fix the server and it starts to operate normally again.

Exact steps to do:

1. close the Snap Store application

2. open the terminal (Ctrl+Alt+T)

3. type the command: ps -ef|grep snap-store|grep -v grep to check if snap-store process is still running

4. if you get anything in the output, that indicates that snap-store is still running. The output may be like:

   raj 24225 1871 2 21:41 ? 00:00:23 /snap/snap-store/542/usr/bin/snap-store

5. in that case type the command kill number where number is the first number shown in the line above, right after the username (in this case 24225)

6. repeat step 3 to confirm that snap-store is not running anymore

7. type the command: snap-store and watch the output for "access denied" messages.

I recommend you install the Synaptic package manager. Type sudo apt install synaptic, and you can run that program in addition to the software center and/or snap. Good luck :)