STILL refusing bottle plZ HELP

My 5 mo old is STILL not taking the bottles I know I posted on this before but not he’s older and even more stubborn and smart. I switched to size 4 flow avent bottle natural nipple. I even gave him a screen to look at. Tried formula. Helpppp I need a break and I have to go back to work 😔😟he used to take it 2 mo old and now she stopped since I stopped during the pandemic for about 3.5 weeks and now he refuses he slaps thr bottle

Out or just moves his tongue on the nipple if he’s calm and doesn’t suck 😔