This is such enormous bullshit that it has me doing maths in the middle of the night.
How many starts do you think would indicate Pep liked him?
Here's what he's played.
This season, across all competitions:
Squad: 41
Starting XI: 27
Percentage of matches he was available for that he started: 66%
Phil:
Squad: 41
Starting XI: 30
Percentage: 73%
(Last season: 36/61, 59%)
Kev:
Squad: 42
Starting XI: 31
Percentage: 74%
(His first season with us: 34/42, 86%).
Bernardo:
Squad: 46
Starting XI: 41
Percentage: 89%
(His first season with us: 28/47, 60%)
Gundo:
Squad: 46
Starting XI: 30
Percentage: 65%
(His second season with us (as he spent a huge amount of the first season injured): 32/54, 59%)
Raz:
Squad: 46
Starting XI: 28
Percentage: 61%
(His first season with us: 34/52, 65%)
Jesus:
Squad: 40
Starting XI: 21
Percentage: 53%
(His second season with us (like Gundo, had an injury-prone first that was nowhere near a full season): 29/45, 64%)
Mahrez:
Squad: 46
Starting XI: 26
Percentage: 57%
(His first season with us: 28/60, 47%).
So Jack, whose number of starts you think indicates Pep isn't a fan of him, has started more of the matches for which he was available this season than everyone across our forward line/attacking midfield except for Bernardo, Kev and Phil.
And when comparing this, his first season at the club, with the first full seasons of the same group of players, he's played more of the matches for which he was available than everyone except Kev, who for this group is a statistical anomaly in that regard (I appreciate the season's not over yet, but even if Jack's start-rate drops significantly for the rest of the season, he's unlikely to end the season with an overall first season start-rate significantly lower than anyone other than Kev).
So, unless you're suggesting that Pep isn't a fan of any of his players, I think you've got this one wrong.