Sparrow with your own electrum server is same safe as bitcoin safe with neutrino.
Sparrow without your own electrum or bitcoin node, connecting to random nodes is also OK, if you know how to do it and what you are doing.

Is a matter of knowledge, not the safety of an app and we are talking about 2 different types of connections.

So, you're saying that for this scenario, Bitcoin Safe is more private than Sparrow? 

BitcoinHandsOn

spiderman

https://bitcoin-safe.org/

 that uses block filters (neutrino) to sync.

And forget about Electrum servers and you can connect to any random neutrino server and no need for any bitcoin node to run. If you are on the go and you do not have access to your own home bitcoin node, this is an excellent solution.

bitcoin_beginners

How Dangerous Is it to Put an XPUB in a Software Wallet?

Use Bitcoin Safe wallet https://bitcoin-safe.org/ that uses block filters (neutrino) to sync.
And forget about Electrum servers and you can connect to any random neutrino server and no need for any bitcoin node to run. If you are on the go and you do not have access to your own home bitcoin node, this is an excellent solution.
Same as Zeus and Blixt.
Read more here:
- https://bitcoinops.org/en/topics/compact-block-filters/
- https://bitcoinmagazine.com/technical/why-bitcoin-wallets-need-block-filters