Comment by Ralfp
Because not everything is done as EU law. Frequently its an executive order or a directive passed down from national minister or other govt official to their branch or other branches to make their base happy at expense of people currently blamed for govt’s failures.
Eg. no law in Poland regulates legal gender change process. But there is a series of directves for courts on how this should be addressed issued by whoever is in the govt at the moment. One govt issued a directive that those are low prority, other that spouse and children should have a power to veto, another that actually those are high priority and then govt-appointed judges in the supreme court decided to veto the veto and implement new procedure altogether. And none of this is in the law - just directives for judges from pliticans and higher judges.
1) So we should just read the news?
2) It was just an example. Each person should study their aplicable law-making process.