And actually, I was living in China when Facebook stopped working, and I was living in China when google.com stopped working, and when google.cn stopped working. And you are right, they were never officially banned, China would never admit to that, they just used the GFW to make them stop working and commenced a lot of work to make VPNs troublesome to use as well.
Yes, Microsoft operates Bing. But you can’t access gmail through it.
As I said in my previous post, both can operate in China if they choose to comply with Chinese laws. Hotmail and iCloud do, and both works fine in China.
Google and Facebook being banned is no different than if they'd been banned for not complying with GDPR in EU.
The existence of Bing proves that it’s possible to operate a foreign search engine in China.
"I can easily search up multiple cases where foreign companies have applied the rule of law and won in China."
I'd love it if you did this. I sincerely hope these references are better than the ones you produced trying to deny the Uighur genocide in Xinjiang in the other thread. Also, you'll need to provide me some proof these companies didn't pay for the results they got.
Google and Facebook were never wholesale banned by China. You can see this with the fact that Google tried to re-enter China with project Dragonfly (a China-law compliant search engine), until it internally became politically unfeasible. Note that Microsoft operates Bing in China, and Yahoo as well.