Can I somehow display my subscriptions I get in the Ps4 stream?

Can you really not see the subscriptions in a ps4 stream? Do I really need OBS on every page and is there a possibility that I can see the donations and subscriptions in the PS4 stream on a PC?

If you mean the alerts, then unfortunately I have to disappoint you. Unfortunately, you can only include alerts in your stream via OBS.

However, you can get a capture card that ensures that you can also transfer your PS4 with OBS. There you can also insert the donation or subscription alerts.