Pretty sure. The article links four tweets three of which have screenshots all showing only the twitch muted VOD section. The author of the first linked tweet

Pretty sure. The article links four tweets three of which have screenshots all showing only the twitch muted VOD section. The author of the first linked tweet even corrected themselves a day later in a reply to the original tweet. >Thank you for all the reply’s and feedback! Im now understand that this isn’t a DMCA takedown but just your everyday classic muted vod. https://twitter.com/YamiltonJay/status/1327669258776506368 https://twitter.com/YamiltonJay/status/1327669258776506368 The only tweet without a screenshot in the article that called it a "copyright claim" also switched to calling it "a muted section" in a separate tweet. https://twitter.com/SL128T/status/1326949595511926784 https://twitter.com/SL128T/status/1326949595511926784 A lot of people have been getting actual DMCA notices and strikes and bans usually for music but so far all the claims about sound effects I've seen were just the VOD muting system. Could still be happening of course but given the links the article cites I'd call the article headline misleading.