Oh man, I used to use urxvt back in the day (circa 2020-2) because it had a great classic "fake transparency*" mode that I was missing with other terminals.
* Fake transparency just reproduces the part of the root window (wallpaper) directly underneath the terminal window as its own background and applies a tint. It's how we did transparent windows back in 2000 a few years before compositors like #Compiz. It's "fake" transparency because as soon as there was another window underneath the terminal window, the illusion melted away.