2007 Lexus IS 250 - overfilled oil causing my problem?

I did an oil change on my car and now it’s driving rough, lurching, feels like it’s going to stall. I checked the oil level, it’s @ 1" to high. Is the high oil level causing that?

Possible, but unlikely. Hard to say how many quarts one inch equals. If it is enough for the crankshaft to aerate the oil then possible. Reduce the oil volume to the proper level and see if it helps. I suppose it is possible oil is being drawn through the PVC into the engine.
Is your check engine light on?

Based on the symptoms that were described, I think it is much more likely that the OP inadvertently disturbed the electrical connection for the MAF sensor.