Is it ok to go on dates while in the talking phase with someone?

Personally, until I talk about exclusivity with someone I’m single.

Unless you’ve agreed to be exclusive you can do whatever you want. I do think it is important to be on the same page as someone though

Unless you've committed to only seeing each other of course

Same as @maeve_

Absolutely. You don’t owe anyone exclusivity unless you’ve discussed otherwise.

Of course. The talking stage means nothing to me unless exclusivity is discussed and agreed upon