Papers/fiber strip under tiles?

[fredrik#1]

About to start tiling the guest toilet, not a wet room. I have installed new drywall and filled the seams with adhesive.
But I have searched around a bit now and can't find an answer to my question regarding the prep work. Do you need to put tape on the seams or does it not matter? And do you need to use flexible sealant in the inner corners?
Or is this completely unnecessary?

 

[Tune]

The strips are used to better conceal the joints between the drywall sheets. If you have already applied filler to the joints, it is too late to put up strips. If you are going to tile all the way up, the joints will not be visible anyway.

 

[SBH]

You apply the strips to better hide the joints between the gypsum boards. If you have already put filler on the joints, it is too late to apply strips. If you are tiling all the way up, the joints won't be visible anyway.

The strips are applied to reinforce the joint so that it does not crack.

Normally, it is not necessary to put filler before the moisture protection is done.

 

[fredrik#1]

There should be no moisture protection without tiles directly on gypsum, but really the question is, in terms of movement, is there a greater risk of cracked tile joints, etc., if you don't use tape, or does it not matter?