Unless autonomous drones happen, Russia has proved fiber drones are the way to go.
Not saying jammers wouldn’t be needed, but Russia had a lot of success using fiber drones to retake Kursk.
Autonomous drones are an inevitability. Enormous force multiplication is available with autonomy. We're talking about a few people, or perhaps one person, defeating battalions.
The truth is autonomous weapons have been in use for a long time now. Mark 60 CAPTOR anti-submarine mines (circa 1979) autonomously identified enemies and launched a torpedo to destroy submarines.
A drone video intercepted by the russians was released showing this in action: https://en.defence-ua.com/weapon_and_tech/how_ukrainian_fpv_...
I can also assure you that Ukraine using fiber topic, semi and fully autonomous drones with great effectiveness against the invaders.
There are thousands of videos of this in Kursk alone.
Ukraine are able to set up "shielded corridors" to protect critical supply roads from fiber optic drone attack behind the front lines in the donbass but in kursk they were exposed and defenseless.