There are multiple ways to travel. You can have a bike to commute into work rather than taking your car. This is not a freedom limitation. It is just a different perspective. Greta Thunberg travels everywhere freely by keeping emission in mind.
Just tax externalities and let people pay for the privilege. Banning things - literally using the force of the state to prevent traveling too often by plane or banning cars or making everyone ride bikes - is only a green fantasy, and a terrible authoritarian unworkable one.
Private jet owners won't be the targets of such laws: luxury car are excluded from the future oil engine ban in the EU, and private jets aren't subjected to the recent law forbidding short distance domestic airlines in France.
That kind of ideas is parroted by people would be the first to suffer, while the "elite" will of course be exempted to comply. This is yet another power grab for the happy few.