Murata module 1CX works with the i.MX 8MQ and has support in Yocto Linux. The module provides Wi-Fi 802.11ac 2x2 MIMO and BT 5.0. You can get it here: https://www.embeddedartists.com/products/1cx-m-2-module/
For more detail, please visit Murata’s landing page for modules and hardware solutions.
We've been using the Laird LWB5-1004 (Sterling-LWB5 Wi-Fi plus Bluetooth Module | Laird Connectivity) included with the Variscite DART-MX8m SOM with good success. https://www.variscite.com/wp-content/uploads/2018/03/DART-MX8M-datasheet.pdf