For people still confused about the timeline of events thats leads to this.
Sora is 14 in KH1
KH1 to KH2 : 1 year time-skip from the events of CoM
Sora is 15 in KH2
KH2, Re:Coded, Dream Drop Distance and KH3 all happen right after each other in rapid succession
Sora is still 15 in KH3
KH3 into ReMind specifically the Limit-Cut Episode is a Year Timeskip that accounts and leads right in MoM, KH4 directly follows MOM and the 1 Year timeskip is acknowledged and confirmed by Nomura in an extended Famitsu interview
Sora is 16 in KH4
'Dr. STONE' artist Boichi shares his thoughts after the anime's ending:
"The anime's ending moved me even more than the manga's."
"I wanted the anime to reflect the director's own vision, not simply copy the original."
"I could feel how much love the animation team had for Dr. STONE."
"Each and every one of you is Dr. STONE."