My battery is also due for a replacement but I won't do it myself. Thankfully it won't cost much, probably would cost the same if I do it myself + the time needed to learn and do it so I'd rather send it to someone who knows what they're doing!

That's amazing you are able to do this with no problems. I also DIY a lot of stuff and use the internet for research and tutorial but I would be scared to open iPhones myself. Your phone still looks very good and keep it that way. :D I read a lot of complaints about the new iPhones being meh... I'd rather stick to my old iPhone 13 than to buy a new one with almost no new features lol