Stephen Curry had the most games with 40+ points in 2020-21, with 11 games.

Interpreted as:

most 40 or more point games by a player in 20-21 season

NAME	GP	PTS	SEASON	TM	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	REB	AST	STL	BLK	TOV	PF	+/-
Stephen Curry	11	527	2020-21	GSW	35.7	47.9	5.4	5.2	0.7	0.1	4.2	15.1	26.9	56.1	9.5	17.7	53.3	8.3	9.0	91.9	392	59	57	8	1	46	25	+161
Bradley Beal	8	374	2020-21	WAS	39.4	46.8	4.4	3.3	1.1	0.5	2.9	17.3	30.8	56.1	3.8	7.8	48.4	8.5	9.6	88.3	315	35	26	9	4	23	18	-18
Damian Lillard	6	262	2020-21	POR	39.7	43.7	3.7	10.0	1.0	0.3	2.5	13.7	24.3	56.2	6.2	13.7	45.1	10.2	10.3	98.4	238	22	60	6	2	15	8	+36
Kyrie Irving	5	208	2020-21	BKN	36.1	41.6	5.0	4.2	1.8	0.6	2.4	16.2	27.0	60.0	5.8	10.4	55.8	3.4	4.0	85.0	180	25	21	9	3	12	14	-14
Nikola Jokic	5	228	2020-21	DEN	39.8	45.6	9.2	7.0	1.2	1.2	2.8	18.0	29.0	62.1	3.0	5.4	55.6	6.6	7.0	94.3	199	46	35	6	6	14	11	+21
Joel Embiid	5	219	2020-21	PHI	37.5	43.8	15.0	4.0	2.0	2.0	2.4	14.4	23.4	61.5	1.2	3.6	33.3	13.8	16.0	86.3	188	75	20	10	10	12	13	+56
Zach LaVine	5	222	2020-21	CHI	37.1	44.4	5.6	3.8	0.4	0.2	3.2	16.0	25.8	62.0	7.8	13.0	60.0	4.6	5.2	88.5	186	28	19	2	1	16	11	+40
Giannis Antetokounmpo	5	226	2020-21	MIL	35.6	45.2	11.0	4.2	0.8	1.4	2.2	17.0	24.4	69.7	1.4	4.4	31.8	9.8	13.0	75.4	178	55	21	4	7	11	11	+36
Donovan Mitchell	4	167	2020-21	UTA	38.3	41.8	4.5	4.8	1.0	0.3	2.0	14.5	32.0	45.3	3.8	11.8	31.9	9.0	10.8	83.7	153	18	19	4	1	8	12	-4
Luka Doncic	4	174	2020-21	DAL	39.3	43.5	7.0	10.3	1.3	0.8	4.8	14.8	25.3	58.4	5.8	9.8	59.0	8.3	10.0	82.5	157	28	41	5	3	19	13	+50
Trae Young	4	166	2020-21	ATL	34.4	41.5	4.5	6.8	0.5	0.0	5.3	13.3	21.3	62.4	4.5	9.0	50.0	10.5	11.5	91.3	138	18	27	2	0	21	6	+48
Jayson Tatum	4	197	2020-21	BOS	39.5	49.3	8.5	3.5	0.5	1.0	2.0	15.8	26.5	59.4	5.3	8.5	61.8	12.5	13.5	92.6	158	34	14	2	4	8	12	+47
Julius Randle	3	128	2020-21	NYK	40.8	42.7	10.0	6.0	0.7	0.3	3.3	13.7	24.0	56.9	6.3	10.7	59.4	9.0	11.3	79.4	122	30	18	2	1	10	6	+16
Russell Westbrook	3	125	2020-21	WAS	38.1	41.7	10.0	9.7	2.0	0.3	3.7	16.3	30.0	54.4	4.0	8.0	50.0	5.0	7.7	65.2	114	30	29	6	1	11	12	-14
De'Aaron Fox	3	130	2020-21	SAC	37.8	43.3	4.0	8.7	2.7	0.0	2.7	16.0	26.3	60.8	3.7	9.7	37.9	7.7	11.0	69.7	114	12	26	8	0	8	9	+20
Kevin Durant	3	126	2020-21	BKN	38.8	42.0	5.7	5.7	1.3	0.7	4.3	16.0	27.7	57.8	4.7	8.3	56.0	5.3	5.7	94.1	116	17	17	4	2	13	6	+16
Jaylen Brown	3	124	2020-21	BOS	32.3	41.3	7.7	3.3	1.0	0.3	4.3	16.0	23.0	69.6	5.0	7.7	65.2	4.3	5.3	81.3	97	23	10	3	1	13	4	+49
James Harden	3	128	2020-21	TOT	42.5	42.7	9.3	13.3	1.3	0.0	3.3	13.0	26.0	50.0	4.0	11.0	36.4	12.7	14.7	86.4	128	28	40	4	0	10	11	+16
Terry Rozier	3	126	2020-21	CHA	40.0	42.0	5.0	3.0	1.0	0.7	3.3	14.7	23.0	63.8	7.7	12.3	62.2	5.0	5.7	88.2	120	15	9	3	2	10	8	+9
Anthony Edwards	2	84	2020-21	MIN	38.3	42.0	6.5	5.0	1.5	0.5	2.5	16.0	26.5	60.4	6.0	11.0	54.5	4.0	7.0	57.1	77	13	10	3	1	5	6	+20
Devin Booker	2	88	2020-21	PHX	34.7	44.0	4.5	4.5	0.5	1.0	3.5	16.0	25.0	64.0	1.5	5.5	27.3	10.5	11.5	91.3	69	9	9	1	2	7	6	+25
Jordan Clarkson	2	81	2020-21	UTA	32.3	40.5	4.0	0.5	1.5	0.0	2.0	14.5	26.5	54.7	6.5	14.5	44.8	5.0	6.0	83.3	65	8	1	3	0	4	3	-8
Nikola Vucevic	2	85	2020-21	ORL	35.7	42.5	14.0	4.0	1.0	0.5	1.0	17.0	25.5	66.7	5.0	9.0	55.6	3.5	4.5	77.8	71	28	8	2	1	2	3	+19
Anthony Davis	1	42	2020-21	LAL	40.8	42.0	12.0	5.0	3.0	3.0	3.0	13.0	27.0	48.1	1.0	5.0	20.0	15.0	17.0	88.2	41	12	5	3	3	3	1	+26
Bojan Bogdanovic	1	48	2020-21	UTA	39.2	48.0	8.0	2.0	2.0	0.0	5.0	16.0	23.0	69.6	8.0	11.0	72.7	8.0	8.0	100.0	39	8	2	2	0	5	4	+4