Need to know which Dell laptops support Resizable Bar

Its time to upgrade my laptop and I use an external eGPU across Thunderbolt.  I've installed an Intel ARC 770 in it and things are fine and I'm now on a single driver stack after years of always having to run two different ones (usually Intel & Nvidia).  However, all the newest video cards want 'Resizable Bar' to be switched on in BIOS (including the ARC 770) but from reading the boards here its almost impossible to figure out what Dell laptops actually have BIOS that supports it.  Can I get a list from Dell (ideally) or some of the other folks on this board for which laptops have updated BIOS to support this?  Thanks!