Wilt Chamberlain had the most games with 20+ free-throw attempts, with 88 games.

Interpreted as:

most regular-season games by a player with 20+ fta

	NAME	GP	FTA	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Wilt Chamberlain W. Chamberlain	88	2,003		47.9	25.8				17.7	33.5	52.9				12.5	54.8	55.0					4,212	2,268					170
2	Shaquille O'Neal S. O'Neal	36	778	39.5	35.2	13.6	2.9	0.8	2.0	11.9	18.8	63.4	0.0	0.0		11.3	52.4	62.1	4.6	9.0	3.1	1,422	1,266	489	105	28	71	111	117	+282
3	Moses Malone M. Malone	33	715	39.9	33.1	15.4	1.3			8.0	16.2	49.5	0.0			17.1	78.7	64.3				1,317	1,093	508	42				94
4	Dwight Howard D. Howard	29	662	37.2	26.9	14.8	1.5	1.1	2.0	7.0	11.9	59.1	0.0	0.1	0.0	12.9	56.3	61.4	5.0	9.7	3.1	1,078	781	428	44	33	58	91	102	+192
5	Giannis Antetokounmpo G. Antetokounmpo	24	527	36.7	38.5	14.4	5.8	1.3	1.3	11.1	19.5	57.2	0.8	3.0	27.4	15.4	70.2	66.1	2.5	11.9	4.0	880	924	345	140	31	31	97	70	+199
6	James Harden J. Harden	22	488	41.4	45.0	7.4	7.7	2.2	0.9	10.9	24.9	43.8	3.9	11.9	32.8	19.3	86.9	64.9	1.3	6.0	4.7	911	990	162	170	48	19	104	66	+188
7	Karl Malone K. Malone	22	481	41.2	37.5	12.7	2.3	1.5	0.8	10.5	18.8	55.8	0.1	0.2	50.0	16.5	75.3	66.0	3.4	9.3	2.9	907	826	279	51	32	18	64	67	+14
8	Kobe Bryant K. Bryant	21	469	40.4	44.9	6.1	4.2	1.8	0.5	12.2	25.2	48.6	1.9	5.2	36.4	18.5	82.9	64.1	1.3	4.8	3.2	849	943	128	89	38	10	68	55	+180
9	Jerry West J. West	20	421		39.6					11.2						17.3	82.2						792						64
10	Bob Pettit B. Pettit	20	419		37.3					10.5						16.3	77.6						745						68
11	Dwyane Wade D. Wade	17	367	42.0	35.4	5.1	7.2	2.2	1.4	8.9	18.8	47.6	0.4	1.2	35.0	17.1	79.0	62.5	0.9	4.2	4.6	714	601	87	123	37	23	78	46	+81
12	Michael Jordan M. Jordan	16	350	41.8	46.6	7.6	5.2	3.6	1.1	13.5	26.2	51.6	0.5	1.9	25.8	19.1	87.1	65.0	2.1	5.4	2.6	669	745	121	83	58	17	41	51	+3
13	Charles Barkley C. Barkley	16	346	44.1	34.8	16.1	3.6	2.4	0.9	9.1	16.2	56.0	0.1	1.4	9.1	16.6	76.6	67.7	6.7	9.4	4.8	705	557	257	57	39	15	77	55	+4
14	Adrian Dantley A. Dantley	16	366	39.3	38.3	7.0	4.1		0.1	9.8	16.3	60.4	0.0	0.0		18.7	81.7	72.8				628	613	112	65		1		53
15	Elgin Baylor E. Baylor	16	340		45.4	19.1				14.6						16.1	75.9						726	305					60
16	Joel Embiid J. Embiid	15	325	36.8	42.5	13.5	4.3	0.9	2.5	11.4	21.5	53.1	1.2	3.9	30.5	18.5	85.2	68.5	3.0	10.5	3.2	552	637	203	64	13	37	48	45	+166
17	LeBron James L. James	15	332	43.3	38.5	7.1	7.2	1.7	0.5	10.3	21.5	47.8	1.4	4.9	28.4	16.5	74.7	61.6	1.2	5.9	4.2	650	577	107	108	25	8	63	40	+62
18	David Robinson D. Robinson	15	321	40.6	33.9	12.5	2.8	1.5	4.0	9.3	18.5	50.4	0.1	0.3	25.0	15.2	71.0	60.7	2.9	9.6	2.5	609	509	188	42	23	60	38	46	+43
19	Allen Iverson A. Iverson	14	305	44.6	41.4	5.5	5.4	2.7	0.1	11.4	26.5	42.9	1.4	4.4	32.8	17.2	79.0	57.3	0.9	4.6	3.2	625	579	77	76	38	2	45	20	+90
20	Walt Bellamy W. Bellamy	13	278		32.5	16.2				8.8						14.8	69.4						423	211					49
21	Paul Pierce P. Pierce	12	258	40.6	36.9	7.3	3.7	1.7	0.9	9.4	20.9	45.0	1.3	4.5	27.8	16.8	78.3	60.8	1.5	5.8	3.4	487	443	87	44	20	11	41	43	+16
22	Oscar Robertson O. Robertson	11	242		41.4	8.5	10.5			11.5						18.5	83.9						455	93	115				36
23	Jimmy Butler III J. Butler III	10	212	40.0	37.0	8.3	5.4	2.0	0.5	8.8	18.9	46.6	0.8	2.7	29.6	18.6	87.7	65.5	3.1	5.2	2.3	400	370	83	54	20	5	23	16	+53
24	Dolph Schayes D. Schayes	10	209		31.4					6.8						17.8	85.2						314						42
25	DeAndre Jordan D. Jordan	8	200	36.1	19.0	16.3	1.4	1.3	1.8	4.4	6.6	66.0	0.0	0.0		10.3	41.0	53.9	5.4	10.9	0.8	289	152	130	11	10	14	6	30	+109