H1B to H4 EAD without employment gap

Hi, I am currently on H1b and would like to apply H4 (with EAD).
What are my options to do so without affecting my current job?

I word for a consultancy. Will I get H4 and EAD approved at the same time? If h4 gets approved first, Can I take off from work until I get EAD approved?
what is the usual gap between H4 and EAD approval?H1B

You can apply for change of status from H1B to H4 along with EAD is your spouse has a approved I-140. The day your H4 is approved, you will need to stop working on H1B unless your EAD is also approved along with H4.

It may or may not.

That depends on your employer and the company policy for leave of absence.

It just varies, no definite answer for this.