Conditional Access: Can someone please explain sign-in frequency and persistent browser session

Hi Guys.

I have a similar question. I want that everytime i turn on the computer my office credentials, including browsers and onedrive, ask again for my password once for the duration of the session. I am trying with Azure Portal Sign In Frequency and Persistent Browser. Can someone help me archive it? I believe i'm close but when i use "every time" frequency onedrive goes nuts and tries to log in continuously. 

I am using a powershell script to make all onedrive files offline. 

# Username holder
$username = "myname"

# Full paths to your OneDrive and SharePoint folders
$OneDrivePath1 = "C:\Users\$username\OneDrive - companyname\home"
$OneDrivePath2 = "C:\Users\$username\companyname"

# Function to set files in a directory to be available offline
function Set-FilesOffline {
    param (
        [string]$Path
    )
    
    # Get all files in the specified directory recursively
    $files = Get-ChildItem -Path $Path -Recurse -File

    # Loop through each file and make it available offline
    foreach ($file in $files) {
        attrib.exe +U -P $file.FullName
    }
}

Any detailed answer will be greatly appreciated.

RippieUK