There’s an updated (February 2022) Power Platform Licensing Guide. There aren’t major changes, just the rebranding of Power Apps and Power Automate Capacity Add-ons to Power Platform Requests Add-ons. You can find the updated guide here: https://bit.ly/3I1DTms.
Microsoft make some changes to the way that Business Central Database capacity is assigned, accrued, and acquired from July 2021. Historically, the first Business Central Essentials or Premium license enabled 80 GB of Business Central Database storage for the tenant, and this remains unchanged, but now individual licences accrue additional capacity: 3 GB for Premium, 2 GB for Essentials, and 1 GB for the Device licence. Customers could buy Capacity Add-on in increments of 1 GB, and may continue to do that, but there’s a new 100 GB Add-on with its own special Overage Add-on which offers advantageous pricing for further 1 GB increases.
Find the relevant Microsoft docs page here: https://bit.ly/2Ty9t7w.