Misfire under load 2019 taco

Does any one have these symptoms in their V6 2019-2020 Tacoma. A stumble or misfire like, when under a load, this happens when slightly giving it gas. This goes away if you lift off the gas. It is worse between 46 mph and 60 mph, and is very prominent if you accelerate. Does not happen until the engine reaches normal operating temp. When it rains it doesn’t do it and runs great. Early in the morning when the computer is still running a little richer it runs good till temp comes up. Toyota says they all do it.

 

Toyota says it’s normal, then you hit 53k miles and have burnt valves and they don’t want to warranty it. My 2016 did it from day one, truck ran lean when warm and in warm temps. Had it in the shop multiple times and Toyota claimed it was the Atkinson cycle doing its job. It took the OVTune and 93 octane all the time to stop the issues, but it was too late for my truck. Never had a CEL or any other warning lights.

Several others are having misfire issues too. See linked threads.

https://www.tacomaworld.com/threads/burnt-valve.662650/

https://www.tacomaworld.com/threads/rough-idle-and-a-misfire-on-cylinder-1.593329/