Russia has attempted to jam Starlink satellites but with very limited success. The problem for Russia is that the constellation is enormous and uses highly directional phased-array radios which are naturally resistant to jamming. They can temporarily jam a few birds over a limited area but don't have the resources to effect sustained denial. We might eventually see them escalate to kinetic strikes on the satellites.

You are right about drones, but Starlink etc is still used a lot by forward deployments of troops. Afaik it has revolutionised the ability to contact these deployments. But I'm not an army guy