Indeed. I received 28 unwanted emails of this kind in January so far (just counted), which is a bit more than once per day, despite quite avidly unsubscribing from this kind of emails. This month I had to unsubscribe from ChatGPT and GitHub emails of this kind too, although I don’t recall opting in to them in the first place and neither of them spammed me until recently.
On Jan 11th I received "Easy self-care you can start today" advertising how ChatGPT can be used for meal planning or finding a local gym (ending with "Ask ChatGPT for more wellness tips"), and on Jan 19th I received "Use ChatGPT to make life easier" advertising how ChatGPT can for example improve my coffee brewing skills (ending with "Ask ChatGPT for more ways to get it all done"). I certainly consider these "spam", and until recently didn’t receive such emails from them.