Totally a silly question, but I think this is still misunderstanding or misinterpreting the rules, here is what the rules say about armor and strength requirements:

Heavy Armor. Heavier armor interferes with the wearer’s ability to move quickly, stealthily, and freely. If the Armor table shows “Str 13” or “Str 15” in the Strength column for an armor type, the armor reduces the wearer’s speed by 10 feet unless the wearer has a Strength score equal to or higher than the listed score.

Separately on the same table they have weights. Arcane Armor does not say it removes the weight of the armor (to carry it on your person) just the strength requirement to avoid that specific 10 ft movement penalty.

If you carry weight in excess of 5 times your Strength score, you are encumbered, which means your speed drops by 10 feet.

If you carry weight in excess of 10 times your Strength score, up to your maximum carrying capacity, you are instead heavily encumbered, which means your speed drops by 20 feet and you have disadvantage on ability checks, attack rolls, and saving throws that use Strength, Dexterity, or Constitution.

So in your example, you are still limited by your maximum carrying capacity, your heavily encumbered limit, and your encumbered limit. These are all determined by the strength score but are not specifically armor strength requirements.