You definitely should have an idea of what each other makes, but specific numbers I’m not gonna tell her. We’ve been together 2+ years and she still don’t know what number was on my W-2, it would prob surprise her. I know her exact salary only because she just got a raise and told me her salary number during the process.
She knows I make good money, but she doesn’t know the exact numbers. My salary is hella cozy but my pay structure involves bonuses that can often be more than my actual salary.
I give her little nuggets or updates on what I’m working on, but I also try to play it relatively low because if she knew the exact number it might change things a little bit.
I got the biggest check of my lifetime in January this year and I shared the news with her because it was a big life event for me, but even then I didn’t tell her the exact number.
And even with that it took me a good year or two to even divulge that much. I wouldn’t reveal my income at all to someone I’ve dated for less than a year, that’s where I’d be concerned about someone being with you for reasons besides you.
Yes

How are you going to make moves if you don't know the financial situation?
You can divulge financial situations without discussing your take home pay from your job. There are middle schools teachers with racks saved up, and there are successful businessmen with little to no savings, living hand to mouth.