There are some traders that don't have a lot of tools or indicators while analyzing the chart because it will just make your chart look messy, which I agree with.
But there are some traders who are a fan of it as long as every indicator you are using got used and is not redundant with others.
If non-chart related, other tools like the platform that tracks volume, or inflows to exchange our outflows, like some on-chain analysis or some funding rates trackers for some exchanges. I believe they are useful too as long as you know how to use them.
Honestly the problem is not that they are making some sort of garbage soup together with all the indicators and all that, I am talking about people who put everything in there and making a situation that is a mess but may work. The real problem is that people who have no idea how to use these indicators end up using it, and creating a mess because of that, that's the problem.
If you know what you are doing then you could build something that will be a big mix of everything, but at least you know what you are looking at but if you do not know what you are looking at then it shouldn't really be mattering to you at all, makes no sense to me.