Another data point: Wallet of Satoshi shows the number of transactions made on their homepage: https://www.walletofsatoshi.com/ so you can check in a month and compute delta too :)
Current number is 3,535,694 (Fri Jun 10, 4:10pm PST)
Great find!
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I calculated the amount and on January 20 2022 the amount was 2,845,413 acording to the wayback machine. This number now stands at 3,539,014. These 2 numbers give an average of about 130.000 payments every 30 days
Also given that WOS doesnt support podcasting 2.0 this number is even more impressive