In my opinion, Konsole is the best terminal emulator in existence. If you are using Plasma, there is really no need to use any other terminal. I’ve tried dozens of them and none come close to Konsole. I also run Konsole completely frameless (a simple Window Rule in KDE). In addition, I also have all maximised windows frameless.
Here is a post with a screenshot that shows how Konsole looks on my computers: [Tip] A better way to add neofetch to your .bashrc
Konsole and Kate are the two main reasons why I use KDE Plasma. The only reason why I would use any terminal other than Konsole is on a computer where I have only dwm, and no KDE (since installing Konsole pulls half of KDE as a dependency, unfortunately).