Some Nikon Z8 owners are reporting that the strap lugs are detaching from the camera body, which is a cause for concern.
Nikon Z8 Recalled: Some Cameras Won't Accept Lenses
Nikon Z8 Strap Lug Repairs update, Q1 Financials Breakdown, Retro ZF New Rumours - Nikon Report 125
Z8 Technical Service Advisory - Strap issue also, Page 3
The Online Photographer
Nikon Z8 owners: just get a BlackRapid camera strap - Nikon Rumors
Several Nikon Z8 owners report separated/broken strap lugs - Nikon Rumors
Another confirmed Nikon Z8 strap lug failure report *UPDATED* - Nikon Rumors
Kolari Vision goes inside Nikon's Z9 in its latest camera teardown: Digital Photography Review
Nikon Z System News and Commentary