Hi there, I'm afraid the work experience obtained while waiting for the outcome of your claim won't count under EE (CEC either FSW).
As per the Ministerial Instructions:
Work experience — requirements
15(7) For the purposes of this section,
(c) the foreign national must have had temporary resident status during their period of work experience and any period of full-time study or training; a https://www.canada.ca/en/immigration-refugees-citizenship/corporate/mandate/policies-operational-instructions-agreements/ministerial-instructions/express-entry-application-management-system/current.html
As per the Ministerial Instructions:
Work experience — requirements
15(7) For the purposes of this section,
(c) the foreign national must have had temporary resident status during their period of work experience and any period of full-time study or training; a https://www.canada.ca/en/immigration-refugees-citizenship/corporate/mandate/policies-operational-instructions-agreements/ministerial-instructions/express-entry-application-management-system/current.html