Yes, but only you lower the opacity beyond certain point. If you want to keep the text opacity but change the background you can use alacritty(which I used before foot) and set the the background opacity in its configuration file. Anyway I have every background set to a dark tone and a conservative 0.9 opacity does not change much the text relative to our perception, one will not even notice unless someone told you.
Hyprland has an integrated feature that can control opacities of windows. It is pretty neat.
Does that make the entire window have a lower opacity i.e. the text too? If so, do you find it distracting?
Yes, but only you lower the opacity beyond certain point. If you want to keep the text opacity but change the background you can use alacritty(which I used before foot) and set the the background opacity in its configuration file. Anyway I have every background set to a dark tone and a conservative 0.9 opacity does not change much the text relative to our perception, one will not even notice unless someone told you.