Shaquille O'Neal and Kareem Abdul-Jabbar were tied for the most games in the NBA Finals with 20+ points and a field-goal percentage of 60.0 or above, with 13 games.

most nba finals games with 20 points on on 60% shooting
Interpreted as:
most NBA finals games by a player with 20 or more points on on 60% or higher shooting
O'NealAbdul-JabbarWorthyMcHaleChamberlainJamesJohnsonRussellThompsonDuncanFrazierAntetokounmpoDurantJonesWestRamseyLeonardWadeAllenParkerTerryGinobiliBryantGrantDrexler1313109988655544444333333333
NAMESERIESGPPTSFG%MPGPPGRPGAPGSPGBPGTPGFGMFGA3PM3PA3P%FTMFTAFT%MINREBASTSTLBLKTOVPF+/-
Shaquille O'NealShaquille O'NealNBA Finals1345664.944.835.115.24.50.62.53.613.921.50.00.07.214.350.5583197588334741+39
Kareem Abdul-JabbarKareem Abdul-JabbarNBA Finals1339667.138.230.59.93.70.92.73.212.819.20.00.04.86.474.74971294810303255
James WorthyJames WorthyNBA Finals1029571.241.929.56.14.11.10.92.012.617.70.20.633.34.16.662.141961411192027
Kevin McHaleKevin McHaleNBA Finals923366.438.625.99.11.70.61.92.69.914.90.00.10.06.18.076.434782155172332
Wilt ChamberlainWilt ChamberlainNBA Finals923869.847.726.424.13.610.815.44.911.841.54292173223
LeBron JamesLeBron JamesNBA Finals824964.241.031.110.17.42.40.63.613.320.62.34.550.02.44.454.332881591952921-25
Magic JohnsonMagic JohnsonNBA Finals822867.843.628.510.19.31.90.43.610.315.10.30.466.77.88.689.934981741532922
Bill RussellBill RussellNBA Finals613870.147.823.027.75.29.012.85.08.261.22871663117
Klay ThompsonKlay ThompsonNBA Finals513063.037.126.04.41.20.60.01.49.214.64.68.454.83.03.488.218622630715+36
Tim DuncanTim DuncanNBA Finals513665.839.727.213.62.41.22.02.410.415.80.00.06.48.674.419968126101210+44
Walt FrazierWalt FrazierNBA Finals512765.345.225.47.010.09.815.05.86.490.6226355016
Giannis AntetokounmpoGiannis AntetokounmpoNBA Finals416563.440.241.312.04.50.52.02.514.823.30.52.818.211.316.369.21614818281010+26
Kevin DurantKevin DurantNBA Finals414466.241.936.09.05.80.51.03.012.819.34.37.060.76.36.596.21673623241211+72
Sam JonesSam JonesNBA Finals411863.636.529.56.52.512.319.35.06.576.9146261012
Jerry WestJerry WestNBA Finals415162.045.837.86.36.314.323.09.311.382.2183252511
Frank RamseyFrank RamseyNBA Finals48768.129.821.86.58.011.85.86.095.81192615
Kawhi LeonardKawhi LeonardNBA Finals37370.339.724.38.31.32.01.01.38.712.32.34.353.84.75.782.411925463413+45
Dwyane WadeDwyane WadeNBA Finals39065.439.330.05.03.32.31.02.711.317.30.73.320.06.79.769.011815107387-11
Ray AllenRay AllenNBA Finals37265.734.824.04.31.71.30.30.77.711.75.36.780.03.34.083.31041354127+2
Tony ParkerTony ParkerNBA Finals38068.836.726.74.02.70.30.02.711.016.01.01.760.03.75.764.71101281086+11
Jason TerryJason TerryNBA Finals38069.633.926.73.73.01.70.02.010.715.33.36.352.62.02.775.01021195064+26
Manu GinobiliManu GinobiliNBA Finals37664.935.325.35.74.31.70.03.38.012.32.73.772.76.77.390.9106171350109+46
Kobe BryantKobe BryantNBA Finals39660.344.432.07.02.71.71.04.311.719.31.72.762.57.010.765.613321853139+23
Horace GrantHorace GrantNBA Finals36678.439.322.08.02.01.70.72.39.712.30.00.02.73.088.91182465276
Clyde DrexlerClyde DrexlerNBA Finals39069.438.730.05.36.01.70.02.711.316.30.31.033.37.09.772.411616185089
StatMuse has game-level data for field-goal percentage going back to the 1956 Finals.