As far as I can gather, the EU is looking at definitions of outdated cars etc.
And some social media have spun it into "OMG they're going to ban repairing cars", which is pretty standard for EU-related freak outs.
The reality is that drafting laws is extremely difficult, a lot of pressure groups, companies and political parties will have different ideas about what things should say, and they'll go back and forth for a long time figuring out what should be in there.
In the meantime, someone will pick up one suggestion from one of those groups, with a good chance they'll misunderstand it as well, and turn it into a story to stir up some drama.
Then you've got a tonne of controversy about a law that never even existed.
I really doubt this would happen. Some degree of right to repair seems likely... will there be more consideration about how to reduce the numbers of polluting cars? Maybe, but it's a problem that will largely fix itself, so yeah I'm doubting.