Self-scans reveal that Pegasus, an invasive and powerful spyware that can secretly control phones and track owners, might be more widespread than previously thought. It was discovered on the phones of everyday phone users.
From wikiHow: How to Check Your Smartphone for Pegasus Spyware
It worked with antivirus scanning - more than half of Windows PCs have spyware on them their users consciously installed so that it would scan and report what they run.
All windows PCs have spyware on them by definition