I can't seem to cast any music which has been marked as explicit from any device (tested with laptop and phone) to any of my speakers. I can play the songs on the devices themselves and I can tell the speakers to play them but, if I try and cast the music from a device to a speaker, it will just skip to a song that's not marked as explicit.
There are no restrictions or digital wellbeing settings turned on anywhere on my home setup.
That's quite interesting! I'm sorry for the trouble ― let's check it out. What Nest speakers do you have? Is this the first time this has happened? How about voice commands, are they playing even when the music is marked as explicit? Is it happening on all music platforms when casting? It would help a lot if you could do a sequential reboot first. Unplug the power cord of your router followed by your Nest speakers. Plug them back in after 3 minutes tops. Restarting your phone might also help.
Keep us posted.