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I think they are like Revolut in that you don't actually own "crypto", you can't send it to another exchange or wallet, it can only be held on Paypal so you are buying exposure to the tokens and your investment will go up and down with them but you don't actually "own" it. This may or may not bother you.
Coinbase is very easy to use but higher fees, Binance and Kraken are both good options depending what is you want to buy.
Has anyone used PayPal for buying and selling? I guess their transaction fees are higher than other services but they seem to have made the process very easy for toe dippers like myself.