USB SSD always forcely and randomly suffering I/O errors due to fat32 partition

USB SSD is Seagate Backup Slim Plus 1.82TiB
Host is Asus K43SJ with 7.4GiB RAMs, 12GiB swaps, i3-2330 dual cores
Distro is Artix OpenRC, graphical shell is KDE Plasma 5.17.4

But i really hope that to be a bug. And do i switch to another distro then try again?

It's a bug - a Microsoft bug. FAT is unsophisticated - some might say rubbish.
Are you using a USB based system to run the machine ?. Why are you using FAT ?. EFI partitions have to be FAT, but there is no reason to be using it otherwise IMHO. You should not be writing to a FAT partition under Linux.

I actually to watch my own movies on an Samsung smart TV at home, but that TV very unfortunately doesn't support UNIX-like fs'es at all, but just supports to read more OS-universal fs'es