⚠

The reality: touch drawing is not the supported input on Switch 2 right now - the day-one threads are explicit that "touch screen works but not for drawing." Stop tapping the screen and switch to Joy-Con 2 mouse mode, which players confirm actually paints.

1Paint With Joy-Con 2 Mouse Mode

2Your Options, Ranked by What Works

Confirmed working
Joy-Con 2 mouse mode
The method Switch 2 players say actually paints. Relearn the cursor, use a decent surface, paint with R.
Also works
Docked with a USB mouse
Same idea as mouse mode. Players treating the game like a PC cursor had fewer complaints than pure touch users.
Does not work
Finger or stylus on the screen
Players who kept tapping after "trying everything" report touch still will not draw, finger or pen alike.
Does not work
Old 3DS / Wii U styli
Not the input the game reads. The pen-pressure text on the load screen does not mean a stylus will draw.

Common Mistakes

Mixed-lobby note: PC mouse users will paint faster than you on a Joy-Con mouse. That is expected in cross-play lobbies, not a defect on your end.