Buyers Trying To Ask For Money After Closing

We recently sold our house and now the new buyers are trying to sue us. Such as the washer and dryers being scratched, claiming the stove is not working (was perfectly fine for us before we moved out), flea infestation that required removal and installation of new carpets(we did not know about fleas in the carpet), odor coming from walls?? and asking for paint money (15k for only 1800), tiles having a crack, lights not working (we replaced all lights before we left). Mind you none of this stuff came up in the inspection that was done 2 weeks before closing. There's even more nitpicky stuff like the refrigerator we left having the color degraded and even asking money for extending their u-haul tuck and hotel stay because they deemed the house to be unlivable? Just want to reteriate that this house is new build in 2020 in california and no issues came up during inspection. These buyers also never once mentioned these issues before closing. We already gave them 5k credit for carpet and painting before closing the house and they ar trying to charge us for that again. Do they have an actual standing to ask money from us after closing.