Good for that guy. Like I said I’ve seen incredible photos taken with a phone. However, a phone cannot compete with the lens quality of a dedicated camera nor can it compete with a dedicated sensor. It really all depends on you. Based on the information you’ve presented, I think you should just get a phone, you have to really be into photography to appreciate a camera. On top of that , you’re going to go down a rabbit hole of thousands and thousands of dollars dealing with lenses and accessories.
Yeah that guy ditched his setup but I can find you 1 million other people that would never ditch theirs, if anything, they add their phones to what they have and integrate it into their system.
Me personally, while I enjoy phone camera photos, I do not like the overprocessing and sharpening they do to try to get that DSLR/Mirrorless look. One day I do think the software will get so good you’ll be hard pressed to tell the difference, but I don’t think we’re there yet.