Triangle-arrow in top right menu could be closer to the text (word, like username or language)
And! Arrows are usually to the right of text, at lichess they are left. If that is standardized to Windows standards, then distances are unimportant.
Having 4 menus in four corners of the screen is - unusual, but actually not a problem.
Some icons, some text, not unified, but again - not actually a problem.
By the way, thank you for an excellent place :)