Should you glue or drill the pleated blind? Which holds better (without major drawbacks)

We have had pleated blinds drilled into the glass bead for years. There is no water problem. The bead is also easy to replace.

If drilling, then glass bead, because replaceable.

We also "only" clamped in our own home, that works wonderfully and is completely reversible.

If you would drill into the window due to the window conditions (depth of the glazing bead), which spot would you prefer: 1) the glazing bead itself or deeper 2) the frame

Whatever is meant by "or deeper": I would use hooks glued with "Power Strips" on the frame. My hooks in the bathroom are glued (at least since the previous tenant, so for more than ten years).

yes logically not deeper into the window but standing in front of the window "deeper" / below the glass bar ;)

standing in front of the window "lower" / below the glass strip

Oh, I see. So you mean the upper glass strip, not the side ones - therefore it is about a curtain for the whole view. For protection from being seen, half height would be sufficient for me.

No, I meant top and bottom. After all, I can only ever "extend" the blind about 2/3 up anyway :D