A conditional SwiftUI view extension that can be used to optionally apply view modifiers based on OS availability. Learn more about how it works here: https://youtu.be/mgplcrJh0K0?si=YNz0IVSiN-3myb08

View+ifAvailable.swift

import SwiftUI

extension View {
    /// Applies the given transform or returns the untransformed view.
    ///
    /// Useful for availability branching on view modifiers. Do not branch with any properties that may change during runtime as this will cause errors.
    /// - Parameters:
    ///   - transform: The transform to apply to the source `View`.
    /// - Returns: The view transformed by the transform.
    @ViewBuilder
    func ifAvailable(@ViewBuilder _ transform: (Self) -> (some View)?) -> some View {
        if let transformed = transform(self) { transformed } else { self }
    }
}

struct ExampleView: View {
    var body: some View {
        Image(systemName: "heart")
            .resizable()
            .scaledToFit()
            .ifAvailable {
                /// Only use if #availalbe branching inside to ensure no runtime changes
                if #available(iOS 17, *) {
			        $0.symbolEffect(.bounce.down, value: value)
        		}
                /// If this closure returns nil it will return the view unmodified
        	}
    }
}

I've updated the code based on a suggestion from Jessy Catterwaul. (Thanks!)