Does “support” really matter? My 2020 iMac still performs great, although I use Sequoia on it instead of Tahoe. It also runs Windows or Linux very well and was easy to upgrade to 128GB RAM.
My 2015 iMac is 11 years old and still works fine - I use it to run Windows 10 for the occasional thing that needs that and to test builds of software in High Sierra. It also runs Linux great.
My 2015 iMac is 11 years old and still works fine - I use it to run Windows 10 for the occasional thing that needs that and to test builds of software in High Sierra. It also runs Linux great.