The honeymoon period ended straight after PSG away. There's certainly no honeymoon period remaining, it seems half the Caf want him out!
Top 6 isn't a reflection of a honeymoon period, but a reflection that the club had horribly lost its way and he has a massive job to turn it around. It's not just results on the pitch, but structure, coaching, recruitment - the club needs systematic structural change across the board.
IMO he's doing a very good job. He's got the dead wood out, and is stabilising recruitment while bedding in some kids so we can have a proper structured approach to future transfer windows.
However, as you indicate, next season is when the pressure will truly be on to challenge the top 2. That is definitely feasible - Spurs are on a downslope, Arse and Chelsea are in a rut, and the Scouse appear to be nearing the end of the Salah-inspired era and will need a rebuild.
If Pep goes next year and we recruit well (Sancho plus others), next season could be very exciting building on the base that Ole is creating.