There is gocryptfs, cryptomator, age, GPG (although I dont recommend it, symmetric encryption is fine), and cryptsetup (LUKS) are the ones I would use.
So… you can’t infect a USB with a virus, but rather, you can infect a computer with a USB device. So technically yeah, your files would not be safe if you use an infected device to decrypt the drive but you can also recover the files.