

It’s fine to feel that way. It’s also fine to have that discussion with folks who may not know what the current state of is. But the bottom line is people don’t enjoy being told what they’re familiar with isn’t good or useful, because to them, it is. If it fulfills their day to day needs and wants, there’s very little argument to be had.
Microsoft’s business practices are scummy, and Apple’s closed ecosystem leads them to punish their customers. But not everyone uses their computer for more than what they absolutely require. Many do not have home computers, and may only interact with them for work. I’m a geek, nerd, whatever. I like to tinker, I like to customize, and I like that I have the freedom to do so. But most people just want something they’re familiar with, something that works as they expect it to. They don’t want to learn to use something at home that isn’t the same as work or school. And honestly I think that’s fair. There’s more going on in their lives, and these days almost everything they need to do is on the internet anyways.
Because you’re serving the website on a non-standard port, you will always need to provide the port in the web browser.
That said, I don’t see anything wrong here. It looks like you’ve got the right ports set, TCP should be correct. You may not get a ping, because ICMP is likely not enabled at the modem. When you ping, you ping the first device that’s exposed to the internet, not an open server.
Just to be sure, when you’re on your phone, you’re using data? If you’re on wi-fi, the modem/router may not be configured to perform NAT reflection, so you won’t be able to access anything via your WAN IP.