Not sure if it has saved us time to do it in React, but we didn't feel like learning a new tool and it has worked really well! I thought making a game would take a lot of time, but we started in December so we will finish this project in less than a year. And we have had lots of fun making it :) Would be fun to hear if someone has done something similar!
Try out the demo at https://lageb.itch.io/stig or https://store.steampowered.com/app/2910530/Stig_Demo/.
I have posted about Stig before, roughly 7 months ago (https://news.ycombinator.com/item?id=39580484). Since then we have changed the levels, updated the menu structure, added a lot of polish etc.