I just bought a new 2020 TRD off road 3 days ago and installed our huge car seat on the passenger side (for our 22 month old. Looks like it has ample space. Let me take a few pictures for you so you can see (after my meetings).
Sorry for the delay, life happened. Here are some pictures with our rear facing car seat.
Fully reclined:
When the car seat is fully reclined back, then you can not move the passenger seat fully back. See this video, it starts off with passenger seat all the way back.