The script renames all the files (found recursively from a root path) whose filename matches the pattern specified

Rename-MultipleItemsWithPattern.ps1

# Root folder
$Path = "\YOUR-PATH-HERE"

# Regex pattern (in this example, something like "(2022_10_10 08_30 UTC)"
$pattern = ".[0-9]+_[0-9]+_[0-9]+ [0-9]+_[0-9]+ UTC."

foreach ($file in $(get-childitem $Path -Recurse) ) {
    if ($file.Name -match $pattern){
        Rename-iTem $File.FullName $($($file.FullName).Replace($Matches[0],""))
    }
}