Unofficial ISOs have been known to contain keyloggers, cryptominers, or backdoors. Unless you trust the source (fbconan, in this case) implicitly and can verify checksums, it’s a risk.
Despite being stripped down, these mods often retain the aesthetic appeal of Windows 11. "Cobalt" editions usually keep the rounded corners and modern UI but might strip out the resource-heavy animations and transparency effects that slow down older GPUs. windows xlite ultimate 11 cobalt v2 fbconan portable
Since this is a "modded" ISO, it does not come directly from Microsoft. Always verify the checksum of your download from FBConan's official channels. Who Should Use Cobalt V2? Unofficial ISOs have been known to contain keyloggers,