Hi,
The overview page at https://infocenter.nordicsemi.com/topic/struct_nrf52/struct/nrf52.html is very useful.
One thing would make it better:
If you could please list which SoftDevices are compatible with each chip.
Maybe in a new row under the Radio / Protocols section.
This way I can see at a glance what works, rather than have to dig this information out of the Product Briefs individually.
Thanks,
Max