While surfing via Opera GX I confronted a weird "new tab opening" mechanic/bug – it randomly switches from "I, the Great Opera, will open this link in a new tab" to "huh, 2 is kinda too much tabs to have, user_name, so I will open your beloved whatever.com right in this same tab".
It is very uncomfortable, as I used to simply close unnecessary tabs. Couldn't find any solution in Settings.

A.
Searched for some random ws:

Clicked the link:

B.
Found other random ws, same click, but now I have a new tab!

Currently:
Opera GX 64b, latest ver;
Windows 10.