Despite following security best practices and wiping Safari cookies, I’m still getting randomly redirected to this phishing webpage?

Webpage in question: https://i.redd.it/631yoynofer21.png
Additionally, the redirection appears to happen multiple times at once, to flood my ‘back button list’ / webpage history so that I can’t return to what I was reading prior to being redirected.
As far as I can self-evaluate, I’m a careful user. I stick to reputable websites, I don’t download strange apps, I don’t jailbreak my phone, etc.
I first encountered this webpage while browsing the Sekiro fextralife wiki, so it started happening within the past 3 weeks. At first I thought it was fextralife that was comprised, but then I got redirected while browsing reddit too.
About 2 days ago I cleared out my Safari data to resolve the issue. But I got redirected again just now, while browsing reddit.
A full factory reset would be extremely inconvenient for work related reasons. Is there anything else that I can do?
View Reddit by 3932695 – View Source