as always, fully proportional:
South Korea, 2024 (using proportional list vote)
PPP: 110 seats (+2)
DAK: 80 seats (-96)
RKP: 73 seats (+61)
NRP: 11 seats (+8)
LUP: 7 seats (+7)
G-JP: 7 seats (+7)
NFP: 5 seats (+4)
PTP: 1 seat (+1)
GNP: 1 seat (+1)
NRP: 1 seat (+1)
SP: 1 seat (+1)
FDP: 1 seat (+1)
CPK: 1 seat (+1)
GNUP: 1 seat (+1)
GNUP [0.3209 quotas] gets the last seat over ORP [0.3164 quotas] and PTP [1.3163 quotas] by 425 and 434 votes respectively. Lots of small parties (20+ didn't make it with most getting over 10k votes, combined enough for 2 or more seats) mean the quota was pushed down massively.
Far-Right [LUP+SP+FDP]: 9 seats (+9)
Right-Wing [PPP+GNP+CPK]: 112 seats (+4)
Center-Right [NRP]: 11 seats (+8)
Center [NFP]: 5 seats (+5)
Center-Left [DAK+RKP]: 153 seats (-35)
Left [G-JP]: 7 seats (+7)
Far-Left: 0 seats
Big tent Anti-Yoon (PPP President) [PTP]: 1 seat (+1)
Cult [NRP]: 1 seat (+1)
Unknown [GNUP]: 1 seat (+1)
The wikipedia page is on the former GNUP, not current.
Likely majority: DAK+RKP (153/300 seats)
even under the more favorable proportional system, Yoon would face a majority against him, at least 161 seats (DAK+RKP+G-JP+PTP)