A couple of days prior the One UI 4 beta began carrying out to Galaxy Z Fold3 and Z Flip3 proprietors in South Korea, presently units in the US are getting it too. Not surprisingly, you should be pursued the beta program, which you can do through the Samsung Members application.
Note that main opened telephones can participate (that was likewise the situation in Korea), so if you have a transporter unit you might need to sit tight for the steady form. This might be a smart thought in any case since beta programming isn’t insusceptible from issues.
Discussing, some Z Fold3 proprietors have as of now detailed that the update breaks the 120 Hz mode for the outside show, leaving it at 60 Hz constantly. Samsung knows about the issue and is dealing with a fix.