If all the Batman movies happened in one universe, in what chronological order should they be? Here's my best guess, subject to change--
early days
JOKER (2019)
BATMAN BEGINS (2005)
THE BATMAN (2022)
BATMAN (1989)
THE DARK KNIGHT (2008)
BATMAN RETURNS (1992)
dynamic duo days
THE BATMAN (1943)
BATMAN AND ROBIN (1949)
BATMAN (1966)
BATMAN FOREVER (1995)
BATMAN AND ROBIN (1997)
later days
BATMAN V SUPERMAN: DAWN OF JUSTICE (2016)
SUICIDE SQUAD (2016)
JUSTICE LEAGUE (2017/2021)
BIRDS OF PREY (AND THE FANTABULOUS EMANCIPATION OF ONE HARLEY QUINN) (2020)
THE SUICIDE SQUAD (2021)
THE DARK KNIGHT RISES (2012)
THE FLASH (2023) [no spoilers]
JOKER has to come first because, Bruce is only a little boy in that one. Arthur Fleck doesn't have to be THE Joker--he's just a Joker. I think BATMAN (1989) should come before THE DARK KNIGHT, because the Joker is already active at the beginning of THE DARK KNIGHT, whereas the Tim Burton movie provides one of his origin stories (Joker's origins are multiple choice).
BATMAN BEGINS gives the most comprehensive origin story and THE BATMAN (2022) is supposed to be relatively early. The 1943 BATMAN serial is the first released where Dick Grayson is Robin. And it naturally follows that each subsequent Robin is a little older than the one before. DAWN OF JUSTICE establishes that this is after all that other suff happened. THE DARK KNIGHT RISES is the odd man out here--it could go before or after other movies.