Walking on wool does not trigger sculk sensor. Other rideable entities do not trigger it either (pig with carrot on a stick).
MC-208597
Boats ridden over wool are detected by sculk sensor
Resolved
Fixed
9
Confirmed
Normal
Game Events
boat, sculk_sensor
20w51a, 21w03a, 21w05a, 21w05b, 21w06a, ..., 22w11a, 22w12a, 22w13a, 22w14a, 22w16b
22w17a
Retrieved
I can confirm that boats ridden over wool trigger sculk sensors. It is unclear whether or not this is intended. (I tested this in 20w51a.)