Can you try changing the range?
sysctl -w net.ipv4.ping_group_range="0 1000"
here it is
Also now can I remove that bloat firewall as star treaker said that I dont need it in home wifi!
Fascinating. Maybe it is a permission issue:
sudo chmod 4711 /bin/ping
Reboot - then test.
I am back still same issue!
Why me only 
I am ultra unhappy please help me I don't want to go back to that world's super slowest OS windows.
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I think you and I can agree that the testing with SSH and IPTables must have had some effect, here.
We just did a rapid fire check of things until I ran out of ideas.
I dislike suggesting this option but: I wonder if re-installing Zorin OS may be the way to get it fixed and a clean start without driving yourself crazy.
This time; Do not install IPTables firewall, since Zorin OS comes with UFW already (And you can remove UFW if you really want to).
Please I don't want to reinstall I have my whole world in zorin os so I can't lose 200gb of data suggest me anything else please.
Yes no issues with router as windows is able to ping and connect to ssh. I tested it on my brother's windows.
You cannot assume everything in the Router is valid just because Windows works. Windows may have exceptions.
Ahh trust me its valid
ok tell me however what to check in router ?
I have no idea- I do not have your make and model of router.
It varies by Manufacturer.
I can only make these suggestions... It's better to have full certainty than to assume for the best.
Are you using a VPN?
Nope I am just using cloudflare 1.1.1.1 linux cli for faster dns lookups
You might try:
sudo apt install --reinstall iputils-ping
I also tried removing cloudflare 1.1.1.1 but still not working and one more thing I forgot which one i installed previously can you please help
Which one I need?
Ubuntu Focal
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