Have you talked to him about it? My partner and I split all parenting 50/50, and we both work long shifts on opposite days, so we solo parent a good deal of time. We had very indepth conversations about our expectations for each other when we are shouldering the majority of the parenting.
I think giving grace when they’re tired/overstimulated as I know I can be snappy when I too am feeling that way. If it’s a regular thing, then I would and have brought it up when the kids are in bed. He may not realise he’s being that way, he may be stressed with other things, not feeling 100% himself etc
It’s ok to feel frustrated but it’s not ok to be mean to your kid. Very bad parenting. Be a grownup, dad.
Not that it's really a good excuse and I am HUGELY generalising here, but quite often the burden of primary carer falls on the mother and the dads just aren't used to everything that it entails and they don't know how to cope with it like we do 😅 also perhaps there is the theory that if they complain enough or do a bad job then we won't ask them to do it very often 😅 Honestly, I just think he needs to spend more time with his daughter and get a better appreciation for what you cope with!