I use my PC on a large TV so I have my text size in Windows 11 set to 125%. This makes a lot of text more readable without being too large. However, this makes the font size of Opera's tab labels massive. I've also noticed that the tabs themselves are very short in width despite not nearly reaching the other side of the browser. Why do the tabs need to be so small if I am not filling the tab bar? It is difficult to determine what tabs are meant to be compared to using Firefox which allows tabs to be wider until they reach the other side of the screen and need to be condensed.
I propose widening the tabs until there are too many and they need to be shortened to allow them all to be viewed (Firefox behavior). Also, allow font size to be configurable for tab labels.
Here is a comparison of Firefox vs Opera on my PC:
https://imgur.com/a/uRY9b8G