Stats taken from twitter:
19/20 season - 16 goals, 23xG
20/21 season - 6 goals, 10xG
21/22 season - 26 goals, 18 xG
21/22 - 0.46 npxG per 90
20/21->0.44 npxG per 90
19/20->0.43 npxG per 90
At the prices being reported, you're really depending on this season's overperformance on his xG being the sudden emergence of one of the Europe's best finishers rather than an anomaly season.
If he cost less you could argue that he'd be worth signing even if his returns regress and he returned below his xG as he did in the previous two seasons. But at €80 + €20 type prices he'd have to actually be the real deal, especially given his weaknesses in general play.