> Absolutely no. We don't want to maintain our own toolchain and we want everything to be coming from the BSP [Board support package] and integrated nicely with the vendor's IDE

This is critical if you want any support from the vendor.

If you come to them with a bug in their hardware but you’re not using their toolchain and BSP, it’s the end of the road. You have to recreate a minimal reproduction of the bug in their ecosystem before they’ll look at it.

When you’re working at company scale, paying $1000 for a compiler is a trivial expense.