And similarly, you shouldn't guess that I guessed rather than asking if I guessed. If I'm wrong on something it's usually because of a misreading of data - not guesswork.
The question is about migration from one Gmail account to another. It wasn't clear if it was just the data or the entire game.
for personal reasons i need to cancel my current gmail account
It was and remains the case you
cannot move purchased good (games, movies, books, etc.) to a new account.
I HAD previously researched that.
How i can transfer purchased in another account?
You cannot transfer any Google Play content (apps, movies, music, books, or unspent credits) to another account. Not even if you own both accounts.
I deleted my post because perhaps adding an account will help with this case, but it does remain the case that a single Gmail account is the "controlled bottleneck" for Play purchases.