That really depends on how exactly the public broadcasting is funded. In Germany for example, this happens independently from other state expenses so there’s no way that the government can directly controll the press. For this reason, the press tends to be critical of all political parties, including the ones currently in government.
Honestly, instead of trying to remove Snap from Ubuntu, I’d just install another distro (PopOS for example is mostly like Ubuntu but with Flatpak instead of Snap)