- 10 tips I wish to know before I’ve started with PowerApps
- How to overcome 500 items limit in PowerApps
- PowerApps components patterns
But in general you should keep an eye on the blog of Michał if you are interested in Power Platform/Apps topics.
Microsoft lately publishes more and more documents which in the past you would only have access to if you attended a training. Manuela tweeted about the materials for the 'Admin in a day' training which are available on Github.