Over 300 switch mods done on exfat and 0 corruptions. The exfat corruption happens MOSTLY on PC side.
Also thought the same, retroarch is pretty notorious for fugging up exfat. Plus developers don't support it, so why use it? You are causing nothing but headache for the devs everytime you say "Awww this homebrew isn't working!" and the issue ends up being exfat.