The track record in all industries for companies having well thought out plans to develop talent is pretty bad in the age of money. More likely they just fire the juniors, slowly lose seniors and pray for AGI to take over all coding. Maybe it does and they win, maybe it doesn't and they start panic hiring after 5 years.
Russinovich wrote SysInternals, which I remember using like 25 years ago to figure out what ran on startup.
Hanselman has a pretty popular podcast, Hanselminutes, that's been running for years and years.