In the tab Coins in Electrum and in the tab UTXOs in Sparrow wallet I have only one UTXO
However on the website blockchain.com it's written output count 4 and unspent output count 1
Is ist normal ?
Yes, because it refer to 2 different things.
What's the difference between output count and unspent output count ?
"Output count" count both spent output and unspent output, while "unspent output count" only count unspend output. If it doesn't answer your question, please clarify your question.