Why do I see my submission when logged in but not from a private tab?

I just submit: [0], and I see it in the "newest" list when logged in, when looking at the list in private mode, it's not there? Is this shadow banning?

[0]: https://nos-nl.translate.goog/artikel/2451465-twitteraccount-eindhovens-dagblad-al-bijna-etmaal-in-handen-van-hackers?_x_tr_sl=nl&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp