There are people who believe that at any point the minimum price of Bitcoin on the market is its mining price. Whatever goes higher than that, especially during bull run, it's an inflated price.
I don't know if that 100% correct, but there is at least some truth in that. It's usually expected that at halving the mining price is already counted in, but that's 2x the previous mining price, adapted with the difficulty rise.

From my experience the miners are in difficulty in the crypto winter, not at halving, since halving is during a bull run. I've seen in crypto winter(s) miners stopping their operations because it was not profitable to keep them running.

I will also add that this depends highly on the electricity price. While some pay under 4 cents/kWh (I think that this used to be the "good" price, I don't know if it changed) or have their own solar (or hydro, or other) facilities, others might pay much more. Of course that the latter are on thin ice and have to be very careful to not overpay for their bitcoins.