It is an indie film, in that it's being distributed by A24 and not a major studio. It's also incredible and I highly recommend seeing it.
The rollout has been a little unclearly messaged, but it's:
March 11 2022 - SXSW premiere
March 25 2022 - NY/LA/SF limited release (including some IMAX theaters)
April 8 2022 - Wider release
April 15 2022 - Full release
So your best bet is likely the end of this week for it to get closer to you. If a theater isn't showing it by then, it probably won't before the theatrical window closes.
The movie's own ticketing site might be helpful too: https://tickets.everythingeverywhereallatonce.movie