Yes, much finer optical resolution is possible if you use multiple instruments separated by a controlled interval.

In radioastronomy, there are arrays of dishes that use this technique. There are good pictures in the Wikipedia article. [0]

One military implementation was a connected three-satellite constellation, built by the US Navy for scanning the surface of the world's oceans. [1]

But those tools work in (relatively) long wavelengths.

I have never heard of free-flight multi-aperature interferometry that works in optical or near-optical wavelengths.

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[0] "Very-long-baseline interferometry" https://en.wikipedia.org/wiki/Very-long-baseline_interferome...

[0] "How VLBI Works" https://en.wikipedia.org/wiki/Very-long-baseline_interferome...

[1] "White Cloud | PARCAE | NOSS" https://en.wikipedia.org/wiki/Naval_Ocean_Surveillance_Syste...