I've found Microsoft documentation (Azure services specifically) to be a weird mix of marketing and semi-technical walkthroughs that seem targeted to point-and-click users following their happy path. As soon as you get to the technical reference (if you can find it) it seems to all be auto-generated and fairly poor quality, or handwritten and either out of date or just not very clear.

The more "core" Azure services are a bit better, but it seems to always be a struggle and searching for answers is always difficult because you have to scroll through a full page or more of Microsoft marketing pages before you reach either Reddit or stack exchange results with the answers you're looking for.

Weird example: recently I discovered Azure redis instances will drop idle connections after 10 minutes, but the network connection still stays open and your commands/queries will fail.