Biggest change from Mavic 2 to the Mavic 3 series and Mavic 4 Pro has been the increased flight time without needing any complicated and expensive third party battery mods, and no swelling batteries!
I used that doublestack battery, pictured above. It only extended flight time by ~10 min. Drone was much more wobbly in flight (b/c center of gravity is higher). Gimbal has had hard time compensating. Then I tried adding four 18650s, two on each...
I’ve seen the extended batteries for M3. But the extra weight just contradicts itself requiring more power to compensate for the weight. They only extend the flight time by a couple minutes. Sounds like you need a purpose built custom drone.
The Snapdragon X is an ARM processor, engineered for power efficiency over battery life. It would not be faster than an i7 or Ryzen 7.
The VSDC is not available on ARM, only x86/x64. It might run under the x86 emulation layer in ARM Windows...
If you use aircrack-ng to monitor data transmitted by your own drone, that should be legal in most jurisdictions. Try to collect data from someone's drone without permission would be illegal.