Not 100% sure about the situation in Austria, Germany is pretty rigid about it. Apparently some hotels are harassing guests for plugging in their own phone chargers because those obviously haven't been PAT tested! I do remember a ban on private heating appliances (i.e. in reality kettles and coffee makers) at school in the mid-2000s but enforcement was non-existent. The Germans require any testing to be done by trained and qualified personnel but some contractors crank out tests at such high volumes that I really doubt the quality of those tests. We recently ran into the issue at work (I'm currently in a non-electrical position in a large museum) because we needed a power strip with shorter flex and my manager suggested checking with the in-house electricians instead of doing the work outselves. I asked the electricians about testing since I'd never seen any stickers and they just got a huge grin.
I do think testing is a good idea, especially on power tools and anything that's used in shops and on construction sites. I see some pretty sad stuff on a regular basis, even just as a customer! Damaged flexes and flexes ripped out of the strain relief are by far the most common issues, followed by appliance and extension leads spliced and taped with anything at hand, including paper painter's tape. And of course plugs and trailing sockets that are completely un-suitable for heavy use. Overheating because of poor connections isn't uncommon either.
