Where p/e starts to matter

For the past couple years p/e's have been ignored - 'Well they are overpriced but people are treating them like they're not.' But now, with a recession/slowdown not just being used as a word and a possibility (it has been commonly talked about and even asserted over the same period), but rather an actual thing setting in, and a stock selloff happening, it's like, 'Well what's to stop the stock from falling more? if I try to hold it rather than sell?' Well, the price is overvalued for what the company is, so the question is maybe Will people continue to treat the valuation as if it doesn't matter?