Useful Articles - Power BI

Override date filter
Use case - example : Last month to date calculation
Link https://towardsdatascience.com/override-date-filter-in-power-bi-743b9e8b9b2

Create variables in a formula instead of creating intermediary columns/measures
Link: https://docs.microsoft.com/en-us/dax/best-practices/dax-variables

Have a dashboard not affected by a specific filter:
If you want to have a dashboard not affected by one of your filter, you need to select the filter and then click on “edit interaction” to select which visuals should be filtered or not

Video: