GitHub link to Nintendo's claim - all the details you need are here
The emulator forks which are being taken down are as follows:
Despite this, the one fork that continues, and will continue without takedown is Ryubing - by Greemdev. This is created by an original member of the Ryujinx team. It's safe, the code is beyond reproach (and violates zero laws or Nintendo code) and actually brings helpful updates.
Still...shitty news. And more indication that the Switch 2's architecture will be damn similar to that of this current Switch. Them taking emulators down means the upcoming games have a solid chance of being emulatable on release. But...that's my own (and others') conjecture, so we'll see when the time comes.
The issue is more with recent consoles e.g. Switch and Ps5/xbox
Well...If you want to emulate current gen, prepare to deal with consequences.
I believe Sony/MS turn a sort of blind eye to emulators of old gen if they arent hurting sales and being egregious with their presence (e.g. promote what it can do rather than word of mouth)
I think your right as well. Most manufacturers don't actively go after such projects unless they hit the bottom line.
Notable exceptions are old licenced games that may hit rerelease and someone came up with a way to decomp it. The policies are all over the place.