The key distinction between previous "decriminalization" and this change to real decriminalization, is that previously it was only a prosecutorial and policing policy to not charge users, but it wasn't a criminal code change.

Drug users were still actively policed with users reporting feeling "harassed" as their drugs were often confiscated, which simply made their life worse and didn't help them at all.

With this change police can no longer confiscate drugs, so the intent is to reduce police pressure on drug users.

As there are still limits to the amount of drugs that can carried, there remains the possibility for severely active policing, harassment and street checks in police actively checking people to see how much drugs they're carrying.