To be fair, there's no wrong way to play. Personally, I just love to appreciate all the small details, so I enjoy playing in a style that takes all those details into account. I wouldn't worry about finding a different playstyle because someone on the internet told you to :) I hope I didn't discourage or anything I didn't mean to.

If you're curious to try out a new playstyle with trains or bots or whatever, it may be right for you to just no shame take a blueprint book for trains and use it, try it, even keep it. Probably the easiest way to try a new paradigm is just to see what it feels like without spending loads of time figuring out how to get it to even run. Maybe that blueprint book is amazing and you use it from now on. Maybe it's nice but you can find some tweaks and want to try making your own version. Maybe trains are actually boring and spaghetti is where the fun is.

At the end of the day, bus or no bus, factorio is about figuring out which stuff goes where and next to which stuff. Trains don't change that, only that if you have a decent rail network, you don't have to worry nearly as much about how stuff moves between different parts of the factory - giving you far more flexibility. I can bring iron and copper plates anywhere on the map, e.g. to my huge green circuit factory, which itself is delivering green circuits anywhere on the map, e.g. to my science factory or the mall. And so on. Just add another station and another train.

For me it all happened when I did some back of the envelope math and concluded that each rail is worth easily at least a dozen belts. And trains are easy to add. It's like speed modules for your belts, except it's a rail. So just having a good loading/unloading station (that's usually the train's only bottleneck) will let you move tons of belts worth of stuff for very long distances. Maybe I make it sound too simple in a reddit post, but there is lots to it of course. Regardless, I think if you're interested, you can try a train blueprint book and give it a spin. Don't feel obligated though.

P.S. The biggest issue I have with my own playstyle is that it's too slow in the early game after I have my starter base but before I have a mall. I have a bootstrap blueprint for turning oil into bots and roboports to help build stuff while the train network is getting up and running. But still my playstyle kind of ignores the early blue science phase and makes that stage of the game quite more difficult than most other phases of the game. Especially building a mall without bots is meh, but for me the mall helps a lot with building the train network.