Natraj Yegnaraman has written an excellent blog about Learning KQL. More projects now require a mix of Azure and Power Platform, if you are doing any queries in Azure Log Analytics or Application Insights, KQL is the language you use.
Quick tip: If you are trying out AppInsights with Dataverse, limit your daily ingestion so that you don't get a surprise bill. Once you get an idea of the projected monthly costs, increase the limit. #PowerAppshttps://t.co/Eg1x0FR6uc