Chain Comes Off Big Chainring With High Right Pedal Force

I recently broke a chain, and after installing a new chain (upgraded model), when in big ring, smallest 3 or 4 gears on the cassette, and high force on the right pedal, the chain skips off the front. I weigh 220lbs.

Drivetrain:

• Crankset: Shimano FC-RX810-2, 48/31T (GRX, 2×11)
• Front derailleur: Shimano FD-RX810
• Rear derailleur: Shimano RD-RX810
• Cassette: 11-speed, range 11-34
• Shifters: GRX RX810-series
• Bike: Canyon Grizl (gravel)

Chains:

• Old chain (broke once, repaired, then broke again one mile from home): Shimano CN-HG601-11
• Current/new chain: Shimano CN-HG701-11

The video shows three different things: part one is a slow mo of the chain skipping upon high force on right pedal. Part 2 is me spinning the cranks to see if there is any bend in the chain ring (I don't really know if it's in my head but maybe a slight deformation in the ring; lmk). Part 3 is what I suspect the issue to be: locking brakes and putting high force on right pedal, you can see the chainring flexing outward, into the outer part of the front derailleur cage.

I even adjusted the upper limit outward, but as you can see in part 3 of the video, it does seem to flex into the outer part of cage.

More photos in a comment. Desperately in need of help here. A test I haven't done yet is maxing out the upper limit so that even significant flex wouldn't bump into the cage, but I'm honestly sick of testing different things. Please help, lol.

EDIT: Also, I have a Sram quicklink on it. It doesn't skip on the quicklink though, it skips on group of links. Just adding for full info