I don't use tape; except when protecting a spine or doing major edge work. Even then, the tape comes off as soon as possible.

Since I only use one layer of tape anyway, it's much too close for me to notice a practical difference. The difference is likely there; but good luck measuring it with just one layer of tape.

There is a noticeable difference (for me) when increasing the included angle on knives...But that increase is much larger than 1-2 degrees. The change there follows the expected pattern. i.e. the edge is a small bit "stronger" and a bit less sharp when making "straight-push" cuts.