For your safety as well as the safety of others, PayPal is a high-risk method and you better not use PayPal for sending or receiving money while trading on crypto as your account might get banned or you get scammed. But if you must, use a trusted escrow or sites like local bitcoins.
I gave you a Merit because I noticed your concern, but I think you understand it the opposite way.
Paypal is a reversible payment method, so making transfers through it will not pose risks as much as sending money through Bitcoin "irreversible."
Therefore, most of those who convert Paypal to BTC are reliable people and scammers use this feature to steal money (Scam others.)
The use of "trusted escrow" will not make sense.