Installation and many other problems in zorin os 16.3 core

[Aravisian]

Can you check your netspeed? I wonder if the repository failure is related to packet loss to your network.

[Supzorin]

Still not updating .2 hours is going to over

[Aravisian]

Is Telegram installed as a Flatpak or APT package?

[Supzorin]

[Aravisian]

The Software Store uses a Plugin for managing Flatpak and Snap packages. This is because it normally handles APT packages.
In terminal, please try running

flatpak update

or

flatpak update org.telegram.desktop

[Supzorin]

Now the problem is solved,thank you for your help

[Aravisian]

Great. Now,

killall gnome-software

Then launch Software store from the app menu and check if everything seems to be working properly.

[Supzorin]

@Aravisian

killall gnome-software

Yes working,seems all are working