Microsoft righted an age-old “wrong” (at least for those who geek out about disk formatting) earlier this week. With its latest Windows 11 Insider Canary Preview Build, the company increased the maximum FAT32 partition size limit from 32GB to 2TB when using the command line.
I think there was some kind of tool that let you extend it more. I had a 512gb drive on fat32 but it sucked so much I just reformated to ext4 and it performed much better