SAME PSN account to link to NEW EA Account, then back to OLD EA Account

I have a request which is coming from weird online progress issue.

I have PSN account which is linked to EA Account, let's name it EA_ONE.

However as the game progress being saved on EA side I would love to:

1) UNLINK the existing PSN account from EA_ONE

2) CREATE new EA account named EA_TWO

3) LINK the existing PSN account to EA_TWO

4) Play for some time with fresh game progress and...

5) UNLINK the existing PSN account from EA_TWO

6) RELINK the existing PSN account back to EA_ONE (should be allowed as same EA Account having its original PSN ID)

It is not to cheat or anything like this - this is to be able to get trophies which are being locked by multi-platform collectibles (e.g. those which were collected on PS4 not being counted as collected when you start your game on PS5 - so you cannot make specific trophy on second platform)

Waiting for a clarification and guidance!

P.S. The game in question is F1 24 which is having the random issue with collecting Champions stickers.