you can probably worry about this less. I had the same worry when building seekwell.io and it turned out to not matter at all. Google did eventually launch some things you could use instead of us, but they sucked and by the time they launched it we were way ahead in features.

They also had a ton of restrictions that made sense for Google (e.g. mostly only supporting their own cloud products as a source), but didn't make sense for most customers. Not a single one of our customers has said "we're using the built in Google features" as a reason for cancelling.

Airtable is likely better then Google is this respect (will listen more closely to their customers), but probably not much. They are still a big company and you can do better.

ps - charge more!