Hey again,
I have tried again the instructions but get either the massage "command not found" or "E: Unable to locate package" and installing the 0ad-dbgsym_0.0.24~r23742-0ubuntu1~20.04~wfg0_amd64.ddeb or 0ad-dbgsym_0.0.24~r23742-0ubuntu1~20.04~wfg0_arm64.ddeb didn't work either.
I tried the fix for Windows and it was way toooo easy. Just downloading a folder, copying and replace the old one and DONE! Isn't there any similar solution for Ubuntu 20.04??? Because first, I love LINUX and secondly I realized Windows didn't' work as well as Ubuntu.
Haha live could be so easy, but its not xD
THANKS ANYWAY!!