you can arrange your working space as you like, whatever suits you and make things easier for you.
True,, having more than what you can keep track of leads to mismanagement and unnecessary anxiety and panic. This leads to people making wrong decisions and mistakes that can be avoided by keeping a short and simple portfolio. I feel bitcoin and a few of the top10 coins except the forked coins is enough of a good portfolio.
There are many good old projects we didn`t notice, new ones appear all the time, your portfolio follows that and from time to time we all add some new coin in our portfolios, FOMO is always in our minds and we buy what we think it will be more popular in the future.
Although I agree with your first comment I would avoid being involved in any such "project" because 99% of then ended up with either forcing KYC to get token swapped or devs abandoning the project due to either lack of funds and so on. Bitcoin on the other hand wont stop at these things.