When can you support my preferred payment processor?
The latest list of supported processors can be found on the Google Pay website.
Is there any dependency between prepayments, deposits, and no show fees?
There is no dependency between prepayments specified in the service feed and deposits or no show fees specified in the service feed. You can have valid deposits and no show fees without having prepayments enabled. However, for either of those three to function correctly, you need to have payments integration complete.