Hey! Man, I’ve been there — it’s like being told to burn a CD or mail a floppy disk. But yeah, faxing is still kicking, weirdly enough. I ended up going down the same rabbit hole, and just when I was about to give up, I stumbled on a review https://appleinsider.com/articles/25/04/03/how-to-fax-from-iphone-with-municorn-fax-app talking about an app called Municorn Fax.
At first, I thought the name was a joke, but it turned out to be the real deal. Clean design, super easy to figure out, and no annoying paywall just to send a page. I had my doc scanned, sent, and confirmed in like two minutes. If you’re only faxing once in a blue moon, it gets the job done without the problem.