Floating scaffolding can generate in 1.18 Pre-release 2 and can be moved around.

When you are using scaffolding forwards by looking down floating scaffolding and generate and can be moved around.

 

Expected result:

Floating scaffolding will not generate.

 

Actual result:

Floating scaffolding generates and can be moved around

 

How to reproduce:

1. Bridge by looking down on scaffolding until floating scaffolding appears.
2. Right-click the floating scaffolding while holding scaffolding and it should move.