Yes, I'm also not sure if Manchester City will let Kevin De Bruyne leave while he is still old and physically strong enough to make a contribution to the MC, who currently still has a very good performance and is still 32 years old, who can still last a few seasons before entering the age of 35-36 year and after that it can be sold to another club, of course to Saudi Arabia.
If De Bruyne were to be offered at a price of 100 million at this time, it seems very unlikely that any European club would want to sign him because of his age and he has just suffered a serious injury, except for a club from Saudi Arabia which would want to buy De Bruyne for more than 100 million.
What is certain is that at this time I believe De Bruyne does not want to leave Manchester City.
In fact, de Bruyne performance does not indicate that he is an old player, because so far De Bruyne plays smart, meaning he doesn't spend too much energy playing but tends to focus more on using technique in playing, that's why de Bruyne has been the mastermind of attacks and brain for games all this time with City, indeed De Bruyne is also starting to have limitations in playing if we look at it from the perspective of age and the injuries that often befall him, but I think these limitations can be solved with the technique and experience he has so far.
Indeed, the price of 100 million pounds is still too high for a player who is almost 33 years old, but if there is a club that plays in a league that is not very competitive then bringing in Bruyne will clearly improve the club's performance, now we can see how Arab clubs are very actively looking for players who are old and even dare to pay these players fantastic prices, I think the reason for them is not because they are unable to bring in young players, but so far I see that eks European star players are more inclined to be able to boost the popularity of the Arab league and increase the team's income in terms of their jersey sales.
Just for a player like De Bruyne you can give 100 million and it's hardly an unreasonable spend, rather the opposite. Yes, he is not young anymore, but the way he plays says otherwise, that he will be able to play at the highest level for at least another 4 years. I'm not sure he'll want to move on from Manchester City though