The bigger problem with Qualcomm is that they're primarily the reason why devices only got a two year span of updates and poor support. Each board built for each phone still had to get the software support starting with Qualcomm before it could be built with new source for updates. Outside that 2 year window, every device OEM had to support the hardware themselves. That's why new phones with older SOCs never got any updates at all. (Read up on Project Mainline as one attempt to mitigate this problem.)

I'm not surprised at all that OEMs are moving towards own/custom SOCs or other sources. Been seeing more Motorola phones with Mediatek socs, Samsung has Exynos, Google now with Tensor.