Hi, Cuencabagels. Welcome to Discuss Cooking :smile :
We have a member who bakes all of her family's bread products. She sets a dish of water in her microwave oven and turns it on high for a minute or two, till it boils. This creates a warm, humid environment inside the microwave. Then she proofs her bread in there.
If you don't have a microwave, the method you described for a regular oven should work, too.
Anyplace where people argue about food is a good place.
~ Anthony Bourdain, Parts Unknown, 2018