H4 Visa(23rd March 2022) expiring in 3 weeks. Filed for H4 and H4 EAD, Current H4 stamping(16 May 2019) valid till had also expired

H4 Visa
2

Yes.

https://www.am22tech.com/usa/news/h4-l2-ead-auto-extension-uscis-policy-change/

https://forum.am22tech.com/t/mexico-cancun-travel-experience-for-i-94-extension-imp-please-read-bumpy-ride-happy-ending/122100