I'm running EK Active Backplate on RTX 3090 FE with Z690 Apex in top X16 slot,.. simply pull M.2 heatsink and card fits nicly.
The black release button on right side of top slot makes pulling card simple also, as GPU locking tab is totally covered after you lock card into slot.
Intel 13900KF ~ Asus MZ790A ~ 48GB DDR5-8200 ~ RTX 3090 Ti ~ Crucial T700 SSD ~ SeaSonic TX-1600 ~ Praxis WetBench ~ Full Custom Water.