Correct use of 'at all' after a verb

I don't know how to use the expression 'at all' correctly. Please, which of the following two sentences is correct?

1. There are people who do not believe in gender equality at all.
2. There are people who do not believe at all in gender equality.

Thanks in advance for your help.

At all is an intensifier for certain types of Negative Polarity Items.
As long as it is commanded by the negative trigger, it can be niched practically anywhere
any other adverb could go in the sentence. There are a lot of niches, and even more kinds of adverbs.

Concentrate on making sure you understand negation and negative polarity items before you worry about unimportant variation like where you put an adverb. Nobody cares as long as you put it in a niche.