Google Ads Dynamic Ad Placement Continues To Test Ads Mixed Within Organic Results
Briefly

Google has been testing dynamic ad placement in search results since last year, mixing ads with organic listings, significantly altering traditional ad placements.
As you noted, this is not uncommon. We have been experimenting with dynamic ad placement on search for more than a year.
With the change to dynamic ad placements, Google has updated its definition of top ads to accommodate ads showing alongside organic results, a notable shift.
Recent user feedback indicates more people are encountering ads interspersed with organic listings, signaling an increase in visibility for this testing phase.
Read at Search Engine Roundtable
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