This question is a bit difficult to answer. The reason is that there are countless statistics, and in my view, they are not truly representative — especially when comparing with Germany at the moment, where rising energy prices keep reaching new highs and inflation has increased significantly.
In Dubai, if you have your own apartment, you only need to pay for electricity and water, which are cheaper than in Germany. Fuel has also become slightly more expensive in Dubai, but we are talking about around €0.40 per liter.
When it comes to grocery prices, the difference feels relatively small. Dining out is priced similarly to Germany. Only alcohol is comparatively very expensive.