Coming from 598CS, looking to upgrade after 10years

Hi all, I've had a pair of Sennheiser HD598CS that I got about a decade ago and have loved, but unfortunately they're starting to show their age. I'm looking for a pair of headphones that I will use primarily for PC gaming and listening to music --- I mainly play Counterstrike, so good audio positioning/imaging is super important.

What I'm looking for:

Budget and location - $400 USD or less

Source/Amp - Direct into PC 3.5mm jack

How the gear will be used - Almost solely on my PC, but I'd like a pair of closed backs to prevent sound from bleeding. I'm open to open-backs as well if their bleed isn't bad.

Features I need: Something with fantastic imaging and good comfort.

Past gear experience - Sennheiser 598CS, loved them but they're a bit worn down at this point.

TIA!!