I tried to get a $500k mortgage a year ago. I had recently formed a new bootstrapped startup and wasn't taking a salary for myself, so I had no income. However I had 800+ credit score and a few million in liquid assets (not even crypto, just boring index funds) and could not get a mortgage whatsoever despite trying through multiple lenders. One even asked if anyone would be willing to cosign and suggested my parents. Ended up just paying cash.