The older Picard is also very nice. It isn’t that old and you can certainly say it is better tested. No need to discard something because it isn’t the latest shiny thing. If you dive in an use it I doubt you will find much that is lacking with it.
It was never a memory issue that caused the abandonment of 32-bit. There was a rebellion among the slaves kept in the dungeon who were supposed to be creating the 32-bit edition and they all escaped. That lack of resources meant a decision was made to abandon the past as fast as Microsoft does. Poor old Windows Vista has been treated just as harshly. Left to fend for itself with the old 32-bit editions.
Just shout if you find anything you can’t do with the 32-bit edition.