I would have tried to make small pieces of leftover flooring that fit right into the holes. It won't be perfect, but probably better than what can be solved with a triangular strip.
Another option, if it's a doorway, is to install a low threshold that fits the profile.
Quite a lot of work, but a "foderkloss" that someone suggested earlier might solve it to some extent. You do get a different one in the apartment. You can't see now, but I suspect that the person who helped you didn't remove the baseboards either. Quarter-round molding will probably be as it is, a semi-good result at best. Then again, when something is new, you tend to look very closely, but you forget about it over time. Good luck, it will surely be okay in any case.
Ja, so what?
Helped Malmgren a bit in the apartment, he was at least satisfied
Haha
Was a bit unsure at first if it was a joke or not, then this post came in and gave the message...
Message that I'm spending too much time on the forum, when I immediately realized who was being referred to and that this would NOT have been OK in his apartment....
Time to log out maybe?
But it's time for TS to log in, you don't start a thread and leave it to the winds like this. Then we might as well use the thread for something else... Any suggestions?
I would have tried to lift up and redo it. First cut off a piece of the skirting board at the bottom with a multitool, then lay the floor under the skirting board.