Is there any way to roll back to the previous update seeing as 23.5 is annoying me with this SafePrice extension crap?
You
might be able to go back to a previous version with system restore, though I can't guarantee that. At the very least, a system restore should put your registry back to what it was.
Beyond that, you can see if anyone has a 23.4 offline install file, and you can work out in PMs to have it sent to you, and then you can uninstall 23.5 and install 23.4. The offline install files are usually fairly large (>600 MB), so you won't be able to just have it emailed to you, they'll need to use a website like Yousendit (if that's even still a thing) or similar.
Worst case you can also just uninstall Avast, roll with Microsoft Defender for a bit (assuming you're on Windows 10 or later), then install Avast again whenever they fix the issue.