Desk research against primary sources. Figures are traced to the issuing UAE authority and linked on the page.
The salary threshold is checked against basic salary on your labour contract, not total take-home pay, so a package that looks well above the AED 4,000 or AED 10,000 line can still fail if most of it is structured as housing or transport allowance rather than basic pay. Ask your employer for the basic salary figure specifically before assuming the sponsorship will clear.
The 2–3 week timeline only starts once your own visa is stamped, so the two applications cannot run in parallel to save time even if you would prefer to bring your spouse over on the same flight. Whether accommodation is employer-provided changes which threshold applies, so confirm that detail in writing before applying rather than assuming the higher or lower figure based on what colleagues in a similar role were told.