I see it without the Honda more often than with

Then you didn't look properly. The Honda logo is quite big:

I thought that Red Bull bought the whole operation and Honda haven’t really been involved at all for the last few years?

No, wrong. Never been the case. Honda builds the engines and owns all intellectual properties. UK facilities (where the hybrid unit was at least partially developed) were about to be closed by Honda and Red Bull took it over. That's it and that's why Lawrence Stroll could throw money at Honda to convince them to return.