I assume you mean the opposite; it is very hard to have your right hand too weak.
The classic, what 400% of golfers start out with, is a strong right hand... assuming you are right handed. Ready to chop down a tree or smash someone in the gops.
Looking down, you should see 2 knuckles of your right hand i.e. your right hand is largely covering your left hand and therefore fairly inactive.
I.e. as you swing, your right hand has far less chance to get involved and hoick it right or left, it just 'helps' your left hand to smoosh it straight.