At 15, June 2020, I have reported the transfer of owner of files got to be able to be achieved with batch requests of Drive API. Ref And also, yesterday (06, July 2020), I could have confirmed that this could be worked. But, now (07, July 2020), the following response is returned.
{
"error": {
"errors": [
{
"domain": "global",
"reason": "invalidSharingRequest",
"message": "Bad Request. User message: \"You can't yet change the owner of this item. (We're working on it.)\""
}
],
"code": 400,
"message": "Bad Request. User message: \"You can't yet change the owner of this item. (We're working on it.)\""
}
}
I hope this situation is resolved in the near future.