What’s the MacOS that would work best iMac 2011 21.5 inch

It’s not clear from reading what would be the best Mac OS to install without any loss of functionality like Bluetooth or graphics capability. Using a ssd and 32GB RAM. I don’t want to change the stock video card as it doesn’t make sense since it would cost more than the iMac is worth.

submitted by /u/eightaceman
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