You are right...they only offer 4 cylinder starting in 2024.
From what I understand Tow capacity of 6500 lbs still hasn’t changed form its 6 Cylinder brethren of years past, but who knows?
I still would rather have a naturally aspirated V6 than a Turbo Charged 4 Cylinder. Unless it is the exact same 2.4 Liter 4 cylinder engine that they put in the 1980s Toyota pickups. Those are the engines/trucks that run forever. They were very popular with people overseas, like the Taliban.
I had a 1988 Toyota pickup($8800 brand new). Sold it in 1999 when I bought a Tacoma extended cab(the ones the frames rusted out on $19K brand new).
The fact that I think my 2012 Tacoma is better than the current model is why I want to keep this one forever.
Hence, I am looking at buying the Lexus IS350C hard top convertible I already posted about. That way I could drive the car in the summer and the truck in the winter(NH). Thereby, lowering the yearly mileage on the Tacoma.