Should I keep my credit card limit high after paying it off?

I'm going to be paying off my credit card in full, by the end of this month (yay). The credit limit on the card is at $10k currently due to the kinds of purchases I was making on it.

Now that the balance is going to be 0 and I don't plan to use it for any other big purchases, should I reduce the credit limit or leave it as $10k?

I was leaning towards leaving it at $10k so the total available credit space counts towards my credit utilization percentage. Is this the right move? Or is it better (safer) to reduce my limit?

Edit: Thank you all so much for your insight and advice! There's so many wonderful comments with helpful info and I wanna say thank you to all of you!