You're addressing a different question from what was being discussed. Even if GCP "lingers lagging behind more and more," that gives users plenty of opportunity to move, they won't suddenly find themselves without a provider.
Given Google's stated commitment to their cloud business (see e.g. https://www.cnbc.com/2020/10/29/google-wants-to-show-how-ser... ), even if their efforts fail it's likely to take many years before anything like that is remotely an issue for customers. "But we might need to migrate in 5-10 years" is not a very persuasive argument for most businesses, for good reasons. Note that GCP is already 13 years old.
I do advise people to keep an eye on their dependencies on a particular provider, since moving providers can be needed for all sorts of reasons, not just the death of a provider. Luckily there are all sorts of tools and approaches to doing this. I've been involved in migrations between all the major providers, and concern about the provider's future wasn't an issue in any of those cases.
>gives users plenty of opportunity to move, they won't suddenly find themselves without a provider.
in some sense what i describe is worse than just sudden (i.e. a 1 year like notice which is pretty sudden in the enterprise time scales) death of a provider as the customers will be "slowly boiled like that frog" not feeling urgency to move at any given time while the platform will be falling behind and into more neglect.
>concern about the provider's future
it is concerns about provider's ability and, most important, willingness to support (i.e. to invest in) the state-of-the-art of the platform in the years to come. There is no such doubts about AWS nor Azure. It is too unfortunate for GCP that ARM popped these couple of years - Google has to decide right now and that is already pretty late whether they are going to invest a bunch of billions in having [competitive] ARM in the GCP. It is not just a matter of getting an ARM license and printing the chips, it is whole stack optimization to get those "40% faster at 20% cheaper" (as claimed by AMZN and with such improvements even native platforms of large slow BigCo-s like ours will probably move to support ARM while x86 will become more like PowerPC "supported too"). I think the Google management wouldn't risk venturing into ARM, at least not to the scale needed.
Given Google's stated commitment to their cloud business (see e.g. https://www.cnbc.com/2020/10/29/google-wants-to-show-how-ser... ), even if their efforts fail it's likely to take many years before anything like that is remotely an issue for customers. "But we might need to migrate in 5-10 years" is not a very persuasive argument for most businesses, for good reasons. Note that GCP is already 13 years old.
I do advise people to keep an eye on their dependencies on a particular provider, since moving providers can be needed for all sorts of reasons, not just the death of a provider. Luckily there are all sorts of tools and approaches to doing this. I've been involved in migrations between all the major providers, and concern about the provider's future wasn't an issue in any of those cases.