decrypt external hard drive mac os catalina

I've got a LaCie 2TB external SSD drive that i would like to decrypt. I tried the method found online of right clicking the drive in finder however there is no option to decrypt the drive there, I tried using the "diskutil cs revert" command in terminal and that didn't work either. I also tried doing it using disk utility itself and the option to decrypt wasn't there either. I'm running macOS catalina 10.15.4

Solution 1:

What file system is your external drive? I have an external APFS volume and there is the 'Decrypt' option in finder so I am guessing that feature is fs-dependent.