A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Hi 3r1cN,
I go through the post, if you want to back to the webpage you browser previously, you can press ALT+Left Arrow or press Backspace on keyboards to do so. However, if you would like to use PowerApps to do so. As the category is about SharePoint Online out-of-the-box-usage, I would suggest you post the query in PowerApps Community which is a specialized channel for questions related to PowerApps. You may find solution and get better experience there.
Really appreciate your understanding on it!
Best Regards,
Clark