murbert I am currently installing Chrome OS Flex on my Ideapad laptop.
I might do this on my Latitude 3120 which is Google certified and supported through 2029. Google's documentation notes that Chrome OS Flex might not work 100% (or not work at all, for that matter) on non-certified devices.
I notice that Chrome OS Flex is not certified for Dell consumer models, like Dell Inspiron. I suspect that the reason for this is that the currently available version of Chrome OS Flex is intended for business/enterprise use, but it might also be related to the fact that Dell Inspiron models, unlike Dell business/education Latitude and Optiplex models, are not "vanilla Intel".
You might want to check to see if your Ideapad is certified. From a quick look at the list, it doesn't look like it is certified.
Google only guarantees ChromeOS Flex functionality on certified models, so if you run into issues, it might be hardware related.
Chrome OS Flex is not Chrome OS, and there are differences between the two Chrome OS is designed for use on Chromebooks and is tightly integrated with Chromebook hardware.
As the document "Differences between ChromeOS Flex and ChromeOS" notes:
Some hardware capabilities on Windows, Mac, and Linux devices are not officially supported for ChromeOS Flex. They might not work as expected, or even not work at all.
Even if these ports or features work on devices, they’re not tested or maintained on ChromeOS Flex. Unsupported ports and features include:
CD and DVD drives
Fingerprint readers
FireWire ports
Infrared (IR) and face recognition cameras
Proprietary connectors and docks
Stylus and active pen input
Thunderbolt functionality
Note: Although Thunderbolt functionality is not supported, Thunderbolt ports using USB-C or mini-Displayport can still be used for any USB3, USB4, and Displayport functionality the port is capable of.
Because Chrome OS Flex is not tightly integrated with non-Chromebook hardware, I don't expect Chrome OS Flex running on my Latitude 3120 to be as bulletproof as Chrome OS running on a Chromebook.