Canon's entry in the tracking camera space is the Powershot Pick, a very low quality OBSBOT webcam clone. Kind of a reversal of roles that Canon makes toys while DJI makes the only trackers which support a DSLR.
It uses the same low power face tracking & object tracking as the others.
Embedded GPUs have gone the way of the dinosaur, but there was a guy who got a single board confuser to support a PCI card GPU. This one was a
$220 ODYSSEY - X86J4105800 with $35 M2 - PCI-E adapter.
The PCI-E adapter has a flex cable allowing the GPU card & confuser to be in line.
The GPU was a $270 GTX 1650 with 4GB.
The power supply was a $20 https://www.amazon.com/RGEEK-24pin-Input-Output-Switch/dp/B07WDG49S8 12V to 150W mini ITX.
He couldn't get any benchmarks to work & didn't try CUDA. The lion kingdom would try a $30 250W
The stock drivers & games seemed to work. All in, it was at least $600 with no guarantee CUDA will work. A vintage jetson can actually be bought for under $300.
There are more expensive single board confusers which support GPUs via an M2 adapter, the $650 NUC-1260P
A PCI card is a lot more confusing power than the lion kingdom's ancient laptop, but the system wouldn't be as portable as either the laptop or vintage jetson.
There are some less portable mini PC's which use 19V laptop power supplies. The $600 elitemini B550
conceptually has a purpose built dock for a PCI GPU but it's not manufactured. Of course, the lion kingdom can't afford any of these options, but the portable confusing power is out there.