Hi Issa,
This can normally be accomplished by having a field present in the table but not visible in the form (either via a hidden question in Survey123 Connect or manually adding a field later). This field will essentially record whether a survey is approved/rejected or in a certain verification step, can be used to filter out responses; either in teh layer's filter (for non-Survey123 applications; we are working on bringing filtering into Survey123), or by altering the definition query of the _stakeholder hosted layer view (see Manage hosted feature layers—ArcGIS Online Help | ArcGIS for more information on this), which will apply these settings for all applications viewing the data.
