Cannot locate lint trap to fit my wsm2420 sazww washer dryer combo ge parts no will not fit

In the Kenmore equivalent, the lint trap is on the back wall of the interior of the dryer. If GE is the same then you'll see two vents at the back inside, one is the intake (where hot air enters), the other is the outtake, which contains a lint trap. You might have mistaken both for nonremovable vents. But one of them is removable. It should have finger holes or something to grab. Just pull it and it will pop out without difficulty. It's probably a two-piece unit (a grate on the dryer side and a screen on the exhaust side, with a space in between for collecting lint), which snaps or slips apart easily, then you can clear the lint, and then snap or slip it back together and just push it back in place in the dryer.