A (sorta) blast from the past that gives you a little more room.
@import ("https://kckarnige.github.io/notitlebar-theme/classicTitlebar.theme.css");
This theme has been tested on Vesktop, Equibop, BetterDiscord, and Replugged.
This theme is incompatible with Legcord, and will prevent itself from loading so it can still be imported and used in themes without any worry about theme compatibility.
I recommend pairing this with the SettingsModal theme addon by DevilBro!