@Jessica Wilson great use case — wildlife tracking with a mixed-range topology is exactly the kind of deployment where this matters.
The MultiNav Pro+ doesn't do automatic adaptive TX power out of the box — it's not running some background RSSI loop that throttles output based on how close the peer is. That said, the STM32WB07 at the core of the module does expose TX power control through the BLE stack, so you can absolutely implement this yourself in firmware. The general approach is to read the RSSI of the connected peer periodically and step the TX power down when signal strength is strong — the HCI command for that on the WB07 is `hci_le_set_transmit_power_level` (or the equivalent vendor extension depending on which BLE stack version you're on). For nodes sitting within 100m line-of-sight you could probably drop TX power significantly and still have plenty of link margin, which would meaningfully help your solar/supercap budget.
If you want a starting point, the AI Firmware Builder in the Dev Hub is actually pretty good at generating the RSSI-polling + adaptive TX power scaffolding — describe your node topology and it'll give you something workable to iterate from rather than starting from scratch. Worth trying before you go digging through the STM32WB reference manual.