Is Google personalizing search in private windows/other browsers?

I did some research about gender equality in the workplace.

Now when I type "how many companies" The first recommendation is "how many companies had achieved the maximum score of 100 on the gender equality index by 2021"

Whether I use Firefox, Opera, or private windows I get the SAME recommendation.

But when I use another IP(in a private window) I get something completely different.

Does anybody know if they're actually personalizing stuff based on your IP/fingerprinting?

I mean I always knew that they were mostly aware of you are regardless of cookies, but never thought they'd change stuff based on that data?