2015 iMac as display for 2021 MacBook Pro
I'm wanting to use my (late) 2015 iMac as a display for my 2021 MacBook Pro.
I've tried looking into Target Display Mode, however I'm pretty sure it's not supported on either (they're both running Monterey, the iMac 12.3.1 and the MacBook 12.2.1).
Is there any other way (e.g., with a cable) that I can use the iMac as a monitor, or as an extension of my MacBook display, or is this not an option at all?
Been researching it for months and responses are mixed and a little confusing. Any help is appreciated :)
MacBook Pro 14″, macOS 12.2