Does AOSP roms support EXT4 by default? topic

I keep on having issues with my MicroSD card being recognized. It is a 64GB one that I have formatted in FAT32. Sometime it will be recognized fine, but quite often it is not. My computer recognizes it fine, as does TWRP; so it cannot be an issue with the card it's self. Sammy based ROMs also recognize it fine. If I reformattted to EXT4, would I have better luck in having it recognized regularly?