Solved! Sort of...
Good news: EGR (and all other monitors closed).
Bad news: Not 100% sure why.
Initially, I hadn't driven van for a couple weeks, and drove it 3 blocks in the morning to the smog station. EGR open, failed.
Purchased Autel AL319. It's cheap $35. I wondered if there was something special California was doing to detect my GDE or lack of recall fix, so I wanted to confirm with Autel. Autel reported EGR open and everything else closed, just like the smog station. No other codes stored.
I decided to plug in the little code reader/flasher from GDE. Re-flashed original firmware from backup. Cleared codes (even though empty) with Autel. Now all monitors report not ready (which is normal).
Drove to work about 25 minutes. Autel reports EGR and FUEL open. 5 hours later drove about 35 minutes mostly highway including a moderate hill. Autel reports all monitors closed! Later drive 40 minutes home. Autel reports all monitors closed again!
So I'm not exactly sure why with the GDE tune it reported EGR open. Maybe it was something about sitting for weeks and only driving a couple blocks? My understanding is that GDE tune should still override that.
Appears I did a drive cycle and everything is closed. Unsure if I hadn't re-flashed if the drive cycle would have cleared. Will try to smog this week.
I highly recommend getting the Autel 319 or similar to test your readiness before you smog. My place is going to charge me to retest--more than the cost of the reader!