IMHO those dynamics are changing. Custom chips are becoming table stakes for new products. Look at Apple M1, W1, or Amazaon's Graviton2 chips. All of those are core parts of products and services which would not be possible without the custom silicon. The pool of talent and resources to build these things is extremely small, and there are geopolitical issues putting ever more pressure and scarcity on them (i.e. China pivoting to reduce dependency on Western designed chips and hoovering up as much chip design talent as possible). The TL;DR is amazing new hardware and services need custom silicon, but custom silicon is only getting more difficult and more challenging to build in the near future.