We know what our designs look like. It is one thing to look at a piece of pottery on earth and say that it was designed but how do you assess a universe for elements of design? What would a designed universe look like?
The burden of proof for a designed universe is on the claimant. But you can't and here's why:
ID provides no way to compare complex systems, like a laptop compared to bio chemical entities, to tell which one is purposefully designed and which was the result of combinations of natural processes.
ID deceptively uses words like "design" and "complexity" without clearly defining them.
ID then goes on to claim "design" without defining the designer or providing any experiment that could independently confirm the existence of said designer.
ID raises to many questions of infinite regression "who designed the designer?" which is fundamentally unanswerable, as well as contradictory to things we already know to be true.
ID is just a clever idea some lawyers came up with to sell pseudoscience to gullible believers and in the end, on every front, fails on science based reality.