How can I ensure MyFitnessPal syncs with Apple Health?

I just upgraded my Apple Watch 7 to the 10 and with the quicker charging, I’ve started wearing it at night to track my sleep. With Fitbit being phased out by Google I’m now looking for an app where I can also track my meals. I’ve downloaded MyFitnessPal and although it seems like I’ve given permission the MyFitnessPal is not showing in the Apple health app.

[Re-Titled by Moderator]