To check for the previous month's earnings go to Reports > Payments.
On the graph, if you hover over the bar for the previous month i.e. 2022-06-01, specifically the top portion (teal colored), it will show your earnings.
Teal= earnings
Orange=Fees
Purple= Payout (Earnings-Fees)
Here is a video that highlights where you can hover your mouse to see your earnings:
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