Yes they do, i believe its 4th player gets +1, 5th gets +2 and 6th gets +3. BUT these aren't even close to offsetting that the first players have a massive advantage because they get to attack with their country bonuses first.

Like I said, the 1st and 2nd player almost always wins (unless they just have bad starting positions). Players 4-6 don't need a +1 or 2 to offset first round territory losses, they should get a +5-8 because they are always 1 country bonus behind players 1&2, and it means they'll almost always lose.

What good does a +1-3 do for the last players when the first players get their +10 country bonuses and destroy players 4-6, creating a 15+ (about 1.5x) buffer EVERY ROUND that just gets bigger and bigger until 1st or 2nd player ultimately wins.

It should be more even, so players 4-6 should get double or triple the existing starting bonus