Hi Andrii,
Thanks for reaching out. A request that is not a Get, Mutate, Search, or SearchStream request
counts as one operation against the user's daily operation quota. The first request in your list is not a Google Ads API request, so it does not count towards the quota.
The frequency limitation is not documented as this limit can vary. Please see the
rate limits guide for more best practices.
Regards,

ref:_00D1U1174p._5004Q2dL6BJ:ref