Since you mentioned ‘vanilla pudding’, it reminded me of this great tip: if you want to stabilize whipped cream (the real stuff you make yourself), add some vanilla pudding. I did it for a cranberry salad I made for a Christmas lunch - the salad had to travel about 2 hours & was then sitting out on a buffet table .... the whipped cream held up just great! Here are some links:
Stabilized Whipped Cream
https://therecipecritic.com/stabilized-whipped-cream/
Cranberry Salad
https://thecaglediaries.com/cranberry-salad/
Will save in holiday file.