There are still a number of DC live action properties that aren't Arrowverse canon. I can make a list for you, but the biggest ones missing are the Dark Knight Trilogy, Watchmen, and the 70s Wonder Woman show, but there is more missing than that.
Also, a heads up that as of tonight the world that Arrow/Flash/Legends of Tomorrow/Batwoman took place on, Supergirl's Earth, and Black Lightning Earth have all been merged into a single Earth designated Earth-Prime, with massive status quo changes and complete histories altered. I don't know if you want to give a heads up to requesters only asking for a single show that they might want to specify Pre-Crisis or Post-Crisis since it's such a big change.
Re: DC Live Action Multiverse
There are still a number of DC live action properties that aren't Arrowverse canon. I can make a list for you, but the biggest ones missing are the Dark Knight Trilogy, Watchmen, and the 70s Wonder Woman show, but there is more missing than that.
Also, a heads up that as of tonight the world that Arrow/Flash/Legends of Tomorrow/Batwoman took place on, Supergirl's Earth, and Black Lightning Earth have all been merged into a single Earth designated Earth-Prime, with massive status quo changes and complete histories altered. I don't know if you want to give a heads up to requesters only asking for a single show that they might want to specify Pre-Crisis or Post-Crisis since it's such a big change.