https://wccftech.com/2022-imac-with-mini-led-promotion-technology/

Now that Apple has brought mini-LED technology to the 2021 MacBook Pro, the company might introduce the 2022 iMac with the same panel, which is going to make a ton of customers exceptionally happy.

Where the M1 iMac lacked certain upgrades, Apple is expected to make it up with the 2022 iMac, according to an update from display analyst Ross Young. Previously, Young’s prediction surrounding the 2021 MacBook Pro on receiving a mini-LED ProMotion upgrade turned out to be true, so as of right now, his track record is as clean as they come. Also, he states that the refresh rate of the 2022 iMac will dynamically change between 24Hz and 120Hz, likely to conserve power and allow for a more efficient system.