Suspension, Wheels & Tires • How Much Wheel Offset is Too Much?

I have a 2017 Flex Limited that originally came with 20" wheels that have a 39MM offset. I recently put on a set of 2020 Explorer 20 wheels that have, I believe, a 37.5MM offset. Should I be looking for a set of 1.5MM wheel spacers, or can any steering/suspension differences be tweaked out with a 4-wheel alignment?
Thanks!

Dave

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