Every time i installed an ubuntu distro , wifi dont appear to me and i need to install drivers via a github repo.

I remember people advice to me to do this - https://forums.linuxmint.com/viewtopic.php?t=435576

and that really solve my problem. However, more im getting into linux, people says to me to be carefully about what i put on terminal.

Being said that, anyone know if this is bad, to do this? Since is the only way i get to putting my wifi working, i would like if this can be danger, since i really dont understand nothing about linux and i am new in this journey.