If you learn classical guitar, there is no doubt that you should look at the staff, because all classical guitar music is a staff.

If you want to understand general symbols now, you must read symbols. You must choose one of these two, and you can't be lazy (it is recommended to learn both).

Explain as follows

In fact, it is not easy to see the melody and harmony of this piece at a glance. One of the most important reasons why foreign countries use the six-line music recording is that composers (or performers) should express their emotions very clearly. Pass it to other players,

For example, the soprano sol (notation 5) in C major has four positions on the guitar (above). If it is only recorded on the staff or notation, it is possible that other players will play the third fret of 1 string, or the eighth fret of 2 strings, or the third fret of 12 strings, or the fourth fret of 17 strings, with no problem in pitch but timbre.

So I suggest you learn at least one of the staff and notation, plus the staff!