Completely different. At least China's rules are technical and can be achieved. Bing, iCloud, AWS, Microsoft office, exchange, Azure are all in China. Of course, whether you want to comply the rules is up to you, but it is doable. Facebook can be in China if they adhere to rules, there were rumors they were going to offer a Chinese version of Facebook but stopped because of backlash, but the point is rule are technical and are doable.
Facebook and Google are still making tens of billions from Chinese advertisers selling stuff on their platform. And China never forced Facebook or Google to sell themselves to Chinese owners, so completely give up control on branding, IP, code, data and all assets etc etc.
US is not even giving you any technical rules to comply with. Tiktok's approach to US is replicate China's rules for foreign internet companies in China. All content moderation done by US employees, US employee work on code and data. Data stored in US based servers. But US companies operating in China, like iCloud, AWS and Azure, US employees can still get access to Chinese data for daily engineering operations, like debugging. Tiktok also offered US government appoint security and natsc officials on Tiktok senior leadership, overseeing all code and data practices. US government have kill switch to shutdown Tiktok if they find anything. Tiktok is perfectly fine with US government implementing the censorship to censor whatever US government doesn't like. These details are equal to China's practices.
But US is not allowing that, it just sell yourself 100% to US owner or get banned. And ban is much more draconian than Chinese ban. Chinese citizens can visit FB using VPN, and companies can transact with FB and Google, hence billions of advertising dollars for these companies. US ban targets all transaction with Bytedance, hence Google, Apple and Oracle are completely geofencing US users that even US user using VPN can't access Bytedance services. And Chinese regulations target specific type of products, Meta's FB main app may not be in China, but FB advertising is. US ban targets Bytedance, the entire company. Capcut, a video editing app is also banned in the US. What data does a video editing app collect? How does a video editing app affect public discourse and opinions? How is Capcut a national security threat? What evidence is there?
US is not offering you a chance to comply, it is offering you a knife to kill yourself, and say here, you got options, why don't u kill yourself. Anyone who think it is not an insult is just, I have no words for you. China gives foreign companies room to live, so your workers have jobs and income, your inventor keep their inventions and private assets. US gives the foreign company two options: either we kill you, or we give you a knife so you can kill yourself. Your workers are out of jobs, what was a comfortable livelihood gone, your inventor's invention is destroyed, you will not get what your invention is worth, your private assets are gone. Or we can take your invention away from you and you lose all control of your baby in the future. If you don't see the difference, I have no word for you.