Not just that, but they seem to actively spawn further away even within your 'chunk' of the galaxy.
I play tall and it's very noticeable. In the last year, if I got a precursor I was nearly guaranteed to have all archeology sites in my sector. VERY rarely I would see the homeworld spawn outside of my borders but usually one system out so you could still claim it if you were fast.
Of my last five games with 4.0 (all choosing the recommended four precursors) I've had two with no precursor at all, two where the initial archeology site spawns in another empire's borders, and one where I had half of the archeology sites spawn in my sector but I could force the conclusion through precursor insights (Irassian). Not a single one where I could actually get the precursor chain naturally.
My instinct is 'horrifically bugged release' over 'malicious compliance,' contra
@Masked Ermine, but it certainly
feels meanspirited at present.