If no, why not? Tesla, SpaceX, Twitter, Square, Paypal, Visa, etc are all adopting, does the largest ecommerce platform not have anything to gain here? I think they're more likely to have BTC than go out of their way to build their own crypto like facebook.
I do not think accepting Bitcoin as a means of payment is the same as adoption. Adoption usually means actual use of the Bitcoin network, which I am very sure not all of these names you mentioned are doing. Maybe Twitter wants to do it some day because it wants to do Bitcoin defi. But if you use Paypal now you do not even have to have a Bitcoin wallet.