Doesn't appear to be getting fuel

did you check to jumper i mentioned?

No not yet.

You are not getting enough fuel. Ok , disconnect the inlet line from the fuel pump and run a rubber hose into a gas container.

At first, it seemed like the filter filled up. After running about 5min I shut off and let the gas drain back out and restarted, never really filled back up again. The amount of fuel I saw in the filter seemed inconsistent, more so as the engine warms up. It only stalled once, but before it was mainly happening when in gear and I can't really test that with a gas can.

So possibly still the fuel pump or vapor lock as Redfish explained also sounds plausible right now.