Community counterplay
Sidestep note
As Yoshimitsu against Lee, sidestep right against 2,1, then punish with SS2.
Source: YouTube: All Strings you can sidestep against Lee
These notes are public community matchup references. Verify details after Tekken 8 patches.
Related answers
As Yoshimitsu against Lee, sidestep or sidewalk either direction against 4,3,4 (Spin Kick Somersault Combo), then punish with SS2.
As Yoshimitsu against Lee, sidestep or sidewalk either direction against 4,u+3 (Lee Somersault), then punish with SS2.
As Yoshimitsu against Lee, sidestep left against ws2,4 (Twister Heel), then punish with SS2.
As Yoshimitsu against Lee, sidewalk right against ws3,3,DF+3,3 ... (Infinite Kick Chain: Middle), then punish with with. UF1 Kincho~B2 1.
Against Lee, punish the unsafe sequence at about -10 around Blazing Kick, Hitman; choose the most reliable guaranteed route for your character.
Source: YouTube: How To Beat Every Character In Tekken 8... The Anti Character Guide