I have read both novels, and watched FIYS. I know I'm speaking too soon but I loved the novels and will definitely love both dramas since they had great and suitable actors/actresses.
First, I think the only thing they have in common is that gaming has a big role on both stories. They both met through gaming. However, YAMG knows each other beforehand and the gaming aspect served as a bridge for them to reconnect again and build deeper connections as they got to interact everyday. YAMG is in realistic setting, applicable to the bigger audience and has relatable problems in life. They are both on the opposite ends. FL clearly has the upper hand, thus more confident. In the long run, some (mainly from her field) may still question her choices because she could choose someone from her field or those rich man like her ex. Probably the only ones who could understand and accept her choice is those who are close to her and her fans.
As to FIYS, in my opinion, their problems are only applicable to those who belong into the e/sports and entertainment field. FIYS is more aggressive, probably because they're both young and courageous. They may not have an equal footing when it comes to financial setting but both are known e-sports player. Yes, the FL is new to the field and ML is a veteran that is why there are a lot of criticisms when it comes to their relationship but that's it.. In time, both are respected and well-known players in the same field.