For reference: Compiling #OTBR 1.1 for the #CC2652R1 using wlan0 for the interface (sub eth0 if using ethernet):

sudo git clone --recursive https://github.com/openthread/ot-br-posix.git
cd ot-br-posix
sudo git submodule update --init --recursive
sudo nano third_party/openthread/CMakeLists.txt
- add this: set(OT_THREAD_VERSION 1.1 CACHE STRING "Thread 1.1" FORCE)
sudo WEB_GUI=1 ./script/bootstrap
sudo BACKBONE_ROUTER=0 INFRA_IF_NAME=wlan0 WEB_GUI=1 ./script/setup

That should do it.

WHOOT SUCCESS GOT #OTBR RUNNING WITH MY TI #CC2652R1. IT ONLY TOOK MULTIPLE GOOGLES, FIVE OBSCURE MESSAGE BOARDS, AND TWO THREADS FROM 2021 THAT WERE ACTUALLY ABOUT DOCKER.

IT ALSO HELPED TO RUN UNIFLASH IN WINDOWS INSTEAD OF UBUNTU WHICH IS WEIRD BUT OKAY.