Looks like we have a CSI here

Great job on the hungry individuals here.
UPDATE
Past few days been struggling a lot with the backend stuff to figure out what is the right setup for me to reach US audience. Also been chatting with few individuals from here, that are experiencing the same thing, so I'm not the only one. I'm a bit behind the schedule with account creation and posting, but as soon as I figure out what works 100% I'm sure I will catch up.
What have I done?
I've tested this method :
1) Like
@Scadec said - No SIM card, iOS location USA, language ENG, same with tiktok. Then download VPN and choose USA , then open TT app and scroll till I see US ads.
Had successful runs and had unsuccessful runs as well (in terms of if I saw the ads or no) in the end when I saw the ads, and posted the videos, overall it just flopped, either 0 views or like 100 views...
A lot of questions in my head right now about all of this
1. What am I doing wrong?
2. Could my accounts be shadowbanned and that be the reason?
3. After testing
@Scadec method in some tests I even experienced that all the engagement I get is like local traffic, not US, which is sooo weird.(even with seen Ads) Im so confused

Any ideas why?
4. What about accounts, if I test new things I create new account as well?
5. Maybe the location is too saturated? Like the US just shadowbans these kind of videos right away?
Funny enough, the best engagement and growth to the US audience I had with my very own starting setup - US Sim + home Wifi , but in terms of scaling I will need VPN or smth like that so I can make more accounts so that all of them are not coming from 1 IP.
If anyone have any ideas, feel free to shoot me DM or write here , will appreciate it a lot!