I tried a Broadcom card at some point that made use of the broadcom-wl driver that I believed worked with it, but the card and the driver were so terrible, I only spent a few hours with it before ripping it out. Currently using an Intel Wireless Card which doesn’t init right on a cold boot. But after a quick warm boot it works fine. This hasn’t been a big problem because sleep and wake works so well on the Librem 15v3 that I rarely ever cold boot the machine as it tends to be sleeping when I’m not using it.