At 1440p I would have thought the 3060ti should be doing ok. The 3070 and 3060ti were/are meant to be the two high end 1440p GPU’s.
I’ve got a 5600X paired with a 3080. I’m looking to upgrade the my 5600X when I can next afford it. The 5600X is still an ok all round CPU for the sim but it does struggle at busy airports with live traffic. Its certainly going to age faster with the sim going forward than a 3060ti will, I would imagine. The 5800X3D is clearly the way to go right now, or wait until the new 7000 CPU’s realise their potential, but thats a bigger investment.