Please enable the functionality to launch a URL from a PowerApps form, and open the URL in the same tab!
Currently when using PowerApps forms the user can see the underlying SharePoint list upon closing the form. If that is not wanted, a workaround is to direct the user to another site by adding the syntax launch("www.otherURL.com") into the submit button on the form - however this opens the launched site in a NEW TAB rather than the same tab. Therefore, the original tab showing the SharePoint list associated with the PowerApps form is still open in the user’s browser.
MS Forms may be an alternative for this in some cases, but it does not support attachments, and many of our forms do require attachments to be included.