If there was anyone around, they probably weren't significantly affected.
Galaxy collisions have very little impact on the stars in that galaxy, or the planets around them. Stars are so far apart that the chance of even one direct collision, or a pass so close it would disturb planets around a star, is vanishingly small. Only thing that is impacted is the dust and gas in the interstellar medium.
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If there was anyone around, they probably weren't significantly affected.
Galaxy collisions have very little impact on the stars in that galaxy, or the planets around them. Stars are so far apart that the chance of even one direct collision, or a pass so close it would disturb planets around a star, is vanishingly small. Only thing that is impacted is the dust and gas in the interstellar medium.