Al Safwa Lounge access if incoming flight on First and departing flight on Business?

Hello.

Wanted to ask if anyone has had any recent experiences with accessing Al Safwa lounge based on - arriving in Doha in the regional First Class (no business class operated on these flights) - departing onwards from Doha on a long haul Business Class

Any recent experiences will be highly appreciated. It’s a paid ticket (not an award ticket).

UPDATE: Got the access on arrival in First with onward departure in Business