Merge behavior

I don’t know if it’s a bad practice to reopen an old topic (if it is, i’m sorry) but the author described well my problem (my topic is here if needed : Wait the end of the 2 nodes to merge)

Is there a way to make the merge wait the 2 nodes before merging ? Right now when the first one finished, the workflow continue, then when the second one finish the workflow start again so in my case I have some datas in double in AirTable.

Thanks a lot,

Romain