Tim Drake is now canonically bi thanks to Batman: Urban Legends.
There’s a new LGBTQ superhero on the block, but DC Comics readers already know him well.
A few pages later, Tim goes to see Bernard and things are clarified.

Tim Drake, a.k.a. Robin, in ‘Batman: Urban Legends’ #6.DC Comics
“Tim Drake… do you want to go on a date with me?”
“Yeah… Yeah, I think I want that,” Tim replies.
Earlier this year, Marvel introducedthe first gay Captain Americaby way of character Aaron Fischer.

‘Batman: Urban Legends’ #6.DC Comics
“You are so incredibly loved and important and seen.
This article has been updated with a response from Meghan Fitzmartin.