gistfile1.txt

$test = @(
    [PSCustomObject] @{ IsReady = $false }
    [PSCustomObject] @{ IsReady = $true }
)
if ($test.IsReady) {
    "Output 1"
}
if ($true -eq $test.IsReady) {
    "Output 2"
}
if ($false -ne $test.IsReady) {
    "Output 3"
}
if (-not ($false -eq $test.IsReady)) {
    "Output 4"
}
if (-not ($test.IsReady | Where-Object { $false -eq $_ })) {
    "Output 5"
}
if (-not ($test | Where-Object { $false -eq $_.IsReady })) {
    "Output 6"
}