Astronomers may have found giant alien 'megastructures' orbiting star near the Milky

[Rynn]

Agreed, the reality is we don't know what this is but that doesn't suggest it's artificial in any way. Absence of evidence is not evidence of absence. The predictions about what an intelligent species is likely to do, how a matrioshka would look etc are interesting but often seem quant. Expecting aliens or future societies to conform to that sort of setup is like any other prediction of the past; often steeped in current biases.