You now dont have regularly plastic bags, so you end up buying garbage bags and ziplocs to replace their original re-use.

You havent eliminated anything at all. You havent banned anything. You have in fact expanded the amount of plastic bags in circulation by doing a plastic bag ban.

Our grocery bags are quite thick compared to what I've seen in UK and US, and was also used for garbage disposal. We also have colored bags for food waste and plastic, all which get sorted at the garbage facility.

After the price hike people now buy thin garbage bags, which promptly disintegrate during transport and handling, stopping the expensive garbage sorting machine.

Also, some instead started use the free colored bags for regular garbage, ruining the sorting deal.

But, we do buy a lot less grocery plastic bags. Just nobody's counting the other types so who knows if it's any better over all.