Thanks, I appreciate everyone's suggestions and optional advice.
1) I have looked into the open cell foam sheets to make a homemade Mac Studio dust prevention filter cover since they do not yet make those for Mac studios that filter both for the back exhaust vents and the bottom intake vents without impeding airflow or temp. maintenance. I initially was looking for an open-cell-foam thin tube sleeve that is a larger and hopefully thinner version of the consistent thickness foam sleeve filters used for Shop-Vac vacuums but could not find one that would be big enough to fit snugly around the outer circumference of a Mac studio from the top edge to tabletop to also help lessen the bottom intake vests sucking in dust ... then I planned to just use an Exacto knife or scissors to carefully make slit holes for clear access of connection and power cables plugged in. But since no one makes those for Mac studios yet I probably will have to make one of my own with thin open-cell foam sheets and careful use of sewing teh sleeve closed, or using tape, or glue (but let it dry and cure fully before sliding the filter sleeve carefully over the Mac Studio cube. (e.g., https://www.amazon.ca/gp/product/B000BO68BU/)
2) I am also curious about Polyethylene Terephthalate (PET) sheet filter options for thin but effective filtration options. I researched it and those filter fabric sheets apparently have low electrical conductance, but not resistant to electrostatic. So I am not sure if they are an alternate safe option that is also cheaper because the concepts online that I have seen for HEPA filters built into cardboard and wooden stands for the intake vents seem risky because those 3rd options of materials are electrostatically charged. (e.g., https://www.amazon.ca/gp/product/B0BYDMMRC7/)
3) The 3rd option I have been considering is running my Mac studio, modem, and Time Machine drive inside a small metal and glass server cabinet (since the under desk mount is not an option for me) to help prevent dust intake into the computer but those are more expensive. (e.g., https://www.amazon.ca/gp/product/B082VVWRSG/)
Because I was disappointed at the pre-fabricated options available on the Amazon.ca website for A) the plastic bases with built-in metal filters only help filter out some larger dust debris like pet hair or larger dust bunnies, and B) the polyester fabric canvas covers only seem to cover the top and back exhaust vents and look like they would impede airflow and stress the internal fans due to the tight and thick canvas poly thread denier.
e.g.,
i. https://www.amazon.ca/dp/B0B24PTMRF
ii. https://www.amazon.ca/dp/B0B8XV22LN
(**So it would be appreciated to get not only specialist/techs advice feedback but also expert suggestions from Apple engineers or Apple R&D dept. too for this issue ––epcially since it is a common issue experienced but most or all Mac customers at some point. I am honeslty disappointed that they have not produced an offical authorized answer for Mac customers that pay their wages after so many decades of time they could have released offically recommended proper care instructions to customers)