Hello Ossie2u,
Thanks for posting in the Apple Support Communities.
We understand you're looking for assistance with returning to the previous webpage in Safari on your iPhone 14 Pro, right?
If we have that correct, let's first confirm that you have the latest iOS version installed to be sure this isn't related to what's occurring. Since Safari updates are installed with the latest iOS updates, this can be helpful with clearing up what's happening. Be sure to complete a backup of your iPhone before installing the update, and the following resource will help with both steps if needed: Update your iPhone or iPad - Apple Support
If you have the latest iOS version installed on your iPhone, let's see if this is related to the webpage still loading. In the URL bar, you'll be able to tell if the website has completed the loading of the webpage or not. If this is still loading, you may need to wait for this to complete first. In addition, this may be related to the network connection on your iPhone. The following resource includes steps that are helpful to review as they may be related to what's occurring. We'll include the first suggestion below, and you can follow along here: If Safari isn't loading websites or quits on your iPhone, iPad, or iPod touch - Apple Support
Connect to a different network
Try to load a website, like www.apple.com, using cellular data. If you don't have cellular data, connect to a different Wi-Fi network and then load the website.
If you're using a VPN (Virtual Private Network), check your VPN settings. If you have a VPN turned on, some apps or websites might block content from loading.
We hope this is able to help, and look forward to learning more if you need additional assistance. Confirm which steps you've taken so far, and include any additional details that may be helpful. We'll gain a better understanding of what's happening to determine the best next steps to take.