Azalea bushes can not be waterlogged on java. However they can be waterlogged on bedrock.
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[media]

I do not play the bedrock betas, but I can confirm that they are not waterloggable on java.
Isn't this a duplicate of MC-213794?

Yes, it is.

yea, it looks so. I didn't think that particulary azalea could be reported before. I only checked if someone haven't created any tickets since the release of the newest beta.