Vasyl Ivanchuk beat Wesley So!

In round 4 of the Chess Olympiad Vasyl Ivanchuk was able to beat Wesley So (who blundered in in a winning position) and "so" helped to topple the top seeded US team!

In this position Ivanchuck (White) is already winning. What is the strongest move now to end the game quickly?

White to move
https://lichess.org/broadcast/45th-chess-olympiad-budapest-2024--open-matches-1-25/round-4/6wJduA1I/ncSmD0HF

The funny thing about this victory: 15 years ago Ivanchuk announced his retirement from chess after being knocked out of the 2009 World Cup by the then 16-year-old Wesley So.
But he didn´t retire and instead now took a late revenge!

^{Photo: Michal Walusza/FIDE}