Does watermark affect search results?

Question

Search Engine Optimization

Hello.
There was a dispute with our CEO, help resolve.
We have an online store, and all products are applied like a watermark "German quality".
But the SEO specialist says that you need to disable this watermark, since with it the search engines throw out images from the search.
As for me, this is complete nonsense, because with a watermark, on the contrary, they are more unique.
What will the experts say?

Answer 1

with a watermark, on the contrary, they are more unique

this is also nonsense,
but there are a lot of photos from photobanks in the issue - so the watermark does not affect
and Google knows how to look like, so it’s better not used