Rainmeter is one such tool, though its Windows-only restriction may sound like a downer if you prefer Linux distributions.

Free Fire requires its players to set their in-game names or IGNs before they begin playing a match for the first time. The developers, Garena, also allow their players to change their in-game ...

How to change the name in Garena Free Fire. Players get a chance to set their IGN when they play the game for the first time. They can change it later on in the game as well, but at a cost.