Everything went well and when the official build for One UI came out I switched to that using a guide on the same website back in February.
I even emailed the guy who made the guide and he said I did everything correctly yet I still haven't received a single software update OTA since then. The phone runs perfectly fine so I didn't really make a fuss about it initially but it's been nearly a year since my last update and I would like to receive updates again.
I tried emailing the guy who made the guides last week but he hasn't responded. Any help would be appreciated.
I have received no such communication during the past week. Admittedly I have received a higher number of emails as of recently than normal so your email might have got drowned due to that. My apologies.