Antigravity is based on VS Code, not designed from the ground up, and has second order revenue from the AI subscriptions (financials probably counted under the AI umbrella).
I still wouldn't trust a Google product to stick around, but these hints aren't a reliable oracle either.
When AS was launched Android was the only other viable option and it is the same even today. I don't believe Google's AI products will reach and/or sustain the same dominance as Android.
It is a product launched in the hype cycle of AI. Google has plenty of other products (launched during hype cycles) that are gathering dust.
That's not a guaranteed signal that it will meet the same fate but its something strong enough to be wary of.
It's interesting to think that Google's Antigravity is a forked version of MSFT's VS Code, which uses a browser engine built by Google, which they forked from Apple, which they forked from KHTML.
I still wouldn't trust a Google product to stick around, but these hints aren't a reliable oracle either.