Intake gaskets on an ea82 are not paper, even if aftermarket. They are around 1/8" thick. Every time I have used aftermarket intake gaskets, they failed much sooner than expected. And of course, caused low coolant over normal temperature operation, so I then had to replace headgaskets.
I've seen the gasket sealant dissolved away from the intake ports. I had put it on. Later, when dissasembled, it was gone. Intakes ports carry fuel. It dissolves anything non fuel resistant away over time. Short term, lots of things seem to work, or will work. I am talking long term.