In Dutch Mediamarkt, the same company as Saturn in Germany I believe, they have bins for electric devices.
However that doesn't change the disposable garbage thing, I bet most of them land in some African landfill instead of being properly recycled.
Because German environmental policy is about virtue signalling to keep the plebs busy, not solving environmental problems. Nuclear power plants replaced by coal and natural gas, obsession with recycling but nothing done about disposable packaging, car regulations and city design dictated for decades by the car manufacturing lobby, combustion engine limits/bans only when said manufacturers thought they could get on the Tesla gravy train and subsequently rolled back when reality became apparent, it just goes on.
https://www.prio.pt/pt/prio-ecowaste
This is only one of the places, there are others where used oil can be brought in.
I Portugal there is Rede Electrão. You can deposit those devices in a lot of supermarkets, stores and fire stations.
And then there's a huge bin of damaged LiPos just chilling by the front door. I'm astonished we don't hear about fires in these bins.
For example Germany, while the country is famous for the whole splitting the garbage, I am still waiting after 20 years to see the kitchen oil recycling recipients as we have in Portugal.
As for electronics, I would say no one has anything in place, and human nature is as such that hardly anyone will drive to the next recycling center to deliver a single device that broke down, or call the city hall to collect it.
We should go back to the old days, when electronics were repairable, which naturally companies will lobby against, as that will break down the capitalistic curve of exponential growth in sales.