the code isn't the only infrastructure that can intermingle. I think whatsapp runs on facebook's massive server farms with customized chips - which would hurt

the code isn't the only infrastructure that can intermingle. I think whatsapp runs on facebook's massive server farms with customized chips - which would hurt whatsapp probably if they need to find a different hosting. I imagine there are probably a lot of other services that are shared or interact in some way - maybe shared email/notification services, 2fa services, data analytics/BI, monitoring etc...