It's all about supply and demand. Parts, chips, fuel, inventories, shipping, etc. are ALL in low availability, high demand, with high costs. Dealers have less product on their lots. I am in no way supporting the scumbaggeryness, but they have less to sell, so they make what they can, however they can. That said, for the buyer the "just walk away" rule still holds. Unless you need a car, don't buy right now. If you need a car, negotiate brutally. If you must put down a deposit, use a credit card if possible, and dispute the charge if they do not deliver within 60 days (or your grace period in the credit card agreement).
I put down $500 on a Mazda3 in Nov/Dec 2021. No delivery by February. I found one on the lot at another dealer, and they discounted my purchase by $500, plus other reductions I negotiated. I drew lines through everything on the invoice that I would not pay for (coatings, SXM, fancy brake light, etc.). Brought my own financing, but got them to lower my interest rate through their finance arm. I got above KBB on my trade, and took delivery on the spot.
The cherry on top was that when I asked the dealer I placed the "non-negotiable" deposit for my money, they had nothing in writing. I disputed the charge with my credit card, and got the $500 back. Be as ruthless as they are...anything is possible.