Zscaler App MFA Support - Okta

I came across this community post as I am currently trying to get MFA setup via Okta for use in the Zscaler App. Can ZPA support two factor authentication?

I have a ticket open on this, but I’m not entirely sure if the resolution in that post is accurate. According to support, the browser that’s built into the Zscaler App is actually IE 11. This browser is not supported on many Okta MFA factors. That post claims that basically any IDP MFA will work. I’m not so sure that is true since I see browser incompatibility errors when we try various MFA factors in Okta. Although the Okta Verify app seems to work just fine in the Zscaler App.

Does anyone have any idea what Okta MFA factors are supported within the Zscaler App?