The post that squares best with my understanding is this one by Mario:

“If your Guitar Pro is using ASIO drivers AND Studio One Pro is also using ASIO problems you will experience crashes. This is what Brian was referring. Most ASIO drivers will only work with one program at a time. A Multi-Client ASIO driver will run more than one program at a time.

If I have BiaB and ST1 both using ASIO drivers I will get a crash, thus I always have BiaB using MME drivers, i.e. no crashes.”

The posts that talk about Multi-client ASIO are not relevant to BIAB, where you can use the MME or WAS driver, leaving ASIO to your DAW for recording. Since the ASIO driver you should use is the one provided by the manufacturer, then you can choose equipment that has a multiclient ASIO driver only if you must use two ASIO driver devices at the same time. You are correct to uncheck any setting that takes exclusive use of a device.

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.