You're welcome.
For future reference, it's actually better to install through terminal while also getting the Opera key and adding it to the repos.
Unless you choose to go with flatpak or snap.
I have used Method 2 on this webpage. The only exception is I don't launch Opera through the terminal. It will be populated in your menu once install is complete if using Ubuntu base system.
https://vitux.com/ubuntu_opera_browser/
Also doing this to correct any ffmpeg issues for playing h.264 website videos has worked well for me.
https://github.com/Ld-Hagen/fix-opera-linux-ffmpeg-widevine/