Google Form on Chrome mobile zooming in - fix required

Google forms not working on chrome mobile browser. I've built a Google form and embedded it into my website. However the form works on other mobile browsers (firefox, samsung internet) but fails on Google chrome, it zooms in. The form is embedded as an iframe on the page and therefore I can't change the header code to stop this.

Example here https://www.thesouthafrican.com/culture/sa-tv-film/breaking-soapie-quiz-muvhango-win-cash-competition/