This Symmetra nerf was never in the patch notes, it's a shadow nerf since the beta, they also shadownerfed Junk and Sombra, but specified it in the latest patch note. : r/Competitiveoverwatch
Overwatch's Symmetra and Sigma are getting nerfed in the Remaster update
Overwatch 2 bug nerfs Symmetra, leaving her without turrets | PCGamesN
Will there be changes to Symmetra in the Overwatch 2 PvP beta? - WIN.gg
Overwatch fans are mourning Symmetra as Blizzard nerfs her into the ground | PC Gamer
Do Symmetra Turrets Need A Nerf? | Overwatch 2 Competitive Symmetra Gameplay - YouTube