many gaming mice comes with this sort of functionality. with mine (g304/5), i tend to not change what the buttons do, but i use them as "keybinds" for individua

many gaming mice comes with this sort of functionality. with mine (g304/5), i tend to not change what the buttons do, but i use them as "keybinds" for individual programs. middle mouse click (mouse3?) is great for "ping" functions in games, besides the opening a link in new tab ofc. the page up / down default feature of the side buttons (mouse4 and mouse5) can be bound for voice chat (push-to-talk, toggle mute), for example.