Gaming Pace:
If you play 2 hours a day (a reasonable average), 4,452 hours ÷ 2 hours/day = ~2,226 days (~6.1 years). For completionist runs, 7,420 hours ÷ 2 = ~3,710 days (~10.2 years).
If you play more, like 4 hours a day (weekends, maybe?), it’s ~1,113 days (~3 years) for casual or ~1,855 days (~5 years) for completionist.
This assumes you play every game, but you might skip some or replay favorites like Dynasty Warriors 5 (you compared it to 4 before), stretching the timeline.