Working at height with a self-anchoring tool
The tool supports itself. It does not support you.

What genuinely improves
You are no longer supplying large feed forces from an unstable position, which is a real reduction in the forces that push people off ladders.
Both hands are freer, and the tool does not have to be fought.
What does not change at all
Ladder, tower, MEWP and scaffold requirements. Fall protection. Exclusion zones below.
The need to assess whether the access equipment is right for the task in the first place.
A specific warning
The anchored tool is not a handhold, a step or an anchor point. It is rated to hold itself against drilling loads, nothing else.
Dropped objects
A tool that releases at height is a dropped-object incident. Plan the exclusion zone accordingly.
Questions about this
Does a self-anchoring tool make ladder work safe?
No. It reduces the forces you apply from an unstable position, which is a genuine benefit, but ladder, platform and fall-protection requirements are entirely unchanged.
Can I use the anchored tool as a handhold?
Never. It is anchored to resist its own drilling loads, not to support a person.