I think it is just about our daily sustenance or living. Nothing magic about it. For instance “Man shall not live by bread alone” where bread means our regular meals.
FWIW, I have an Aramaic version translated to English.
Matthew 6:11 says “Give us bread for our needs from day to day”
Luke 11:3 says “Give us bread for our needs every day”
I thought so too for 46 years until now because it never made sense in context because all other parts of the prayer are spiritual. So, I would think that being the first prayer request after praising God for who He is, and acknowledging or submitting to His will (I tend to read literally)...
“Now epi means over, above, beyond, in addition to, or some similar superlative. Ousious refers to the substance of something. Hence, to put these words together we have something amounting to supersubstantial, or super-essential.”
How about, as the things of God are higher than ours, and we should pray continuously, meditate on Him throughout the day, instead of physical life essentials, we ask for our spiritual life essentials. We can’t ask for things from God, according to James, unless conditions are met first, so we then ask for forgiveness, and the following parts of the prayer.
I finally feel at peace with this. I always felt uneasy or conflicted or just, the hair stood up on the back of my neck, when saying the prayer and asking for bread when I know He promises to take care of our needs if we follow His will.