Maybe I'm wrong, but in my opinion, rsi is made to determine the trend reversal, which signals a reversal when the price breaks the level. Therefore, rsi is a trend indicator that works on the same principle as the Keltner channel. If you want to use the breakout of the 50 level, then it is easier for you to add an SMMA of the same period to the chart,
these signals match.
The best version is the standard rsi and all kinds of modifications only worsen the signals. You can verify this by looking at various versions of the indicator.
The only exception is Connors Rsi, because it is made for completely different purposes.