We are facing challenges as our design created with Webflow struggles to load correctly in Facebook in-App Browser. The design get distorted and does not reflect what the user would see when navigating using the standard browser in the same device.
The issues are different across devices/browser versions: in some devices it loads well, in some devices there are some small problems, and in some devices is a mess. Most common issue is that font-size increases significantly w/o logic. Additionally, most of the issues we found appears in new phones/browsers while in older phones/browsers it loads well.
The webflow design is here: https://fran-colono-3-0.webflow.io/.
We have shared the case with Webflow support separately too.
Thanks in advance for your ideas!