Working with Vertical Gallery in PowerApps Canvas App

[@PowerOfTechWorld]

Sample collection data for vertical gallery
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{
Id: 1,
firstname: "John",
lastname: "Doe",
country: "United States",
age: 30,
gender: "Male"
},
{
Id: 2,
firstname: "Jane",
lastname: "Smith",
country: "United Kingdom",
age: 25,
gender: "Female"
},
{
Id: 3,
firstname: "Carlos",
lastname: "Gonzalez",
country: "Mexico",
age: 40,
gender: "Male"
},
{
Id: 4,
firstname: "Aisha",
lastname: "Khan",
country: "Pakistan",
age: 28,
gender: "Female"
},
{
Id: 5,
firstname: "Luca",
lastname: "Rossi",
country: "Italy",
age: 35,
gender: "Male"
},
{
Id: 6,
firstname: "Emma",
lastname: "Johnson",
country: "Canada",
age: 22,
gender: "Female"
},
{
Id: 7,
firstname: "Satoshi",
lastname: "Tanaka",
country: "Japan",
age: 50,
gender: "Male"
},
{
Id: 8,
firstname: "Maria",
lastname: "Fernandez",
country: "Spain",
age: 33,
gender: "Female"
},
{
Id: 9,
firstname: "Omar",
lastname: "Al-Mansoori",
country: "United Arab Emirates",
age: 29,
gender: "Male"
},{
Id: 10,
firstname: "Sophie",
lastname: "Dubois",
country: "France",
age: 27,
gender: "Female"
}