Chests still open with transparent blocks above them

Can TNT be waterlogged? Just asking because it may be because TNT isn't considered a solid block

No

I don't know if this should be so, but it is on Windows 10 in 1.16.201

I just saw it in the Java version and it works there the same way as in bedrock. I think you can close the topic as "Works As Intended"

idk man, tnt cant be waterlogged

Seems to be working as intended per MC-378