Delta Drive, Delta Trust & My Drive · My Drive — storage you own
Does My Drive keep file history when I use my own storage?
Short answer: Only if you've turned versioning on with your own storage provider — it affects their bill, so Storage Studio won't switch it on. The Versions screen tells you which setting it found.
Only if you have versioning switched on at your storage provider. Turning it on changes what they bill you, so it isn't ours to decide.
The Versions screen reads that setting and tells you which it found. If it's off, replacing a file in My Drive replaces it; turn versioning on with your provider if you want old copies kept.