I find myself regularly customizing keybinds in games, there's just a lot of games that map controls on... weird keys. Most recently with PU:Battlegrounds, the default keys on that game does not work for me; to free up some keys and to make movement keys less clunky, I found it made much more sense to have interact on middle-mouse, free-look on thumb-button 2 and fire-mode change on thumb-button 1.
I wish more games let you fully customize console controls as well, I was pleased that Dead Cells let you, as I actually found a souls-like control scheme to fit the game better, and allow you better control over combat. [i.e. LB / RB for attack 1 / 2, roll on B, heal on Y, interact on X and jump on A, souls..ish]
For as much design intelligence that goes into games it's sometimes strange that controls aren't mapped better, though I suppose it's a very subjective thing.