下面是一个自定义Layout的简单实现，希望它能满足您的需求：

struct ContentView: View {
    
    let tags = ["Appetizers","Baking","Breakfast","Dessert","Dinner","Fish","Lunch","Main","Quick","Side","Snack","Spicy","Vegan","Vegetarian"]
    
    var body: some View {

        FlowLayout {
                ForEach(tags, id: \.self) { tag in
                    
                    HStack {
                        Text(tag)
                            .fixedSize()
                            .font(.headline)

                        Circle()
                    }
                    .padding(10)
                            .background(
                                Capsule().stroke(.red)
                            )
                            .padding(5)
                }
        }
    }
}

struct FlowLayout: Layout {
    
    func sizeThatFits(proposal: ProposedViewSize, subviews: Subviews, cache: inout ()) -> CGSize {
        let sizes = subviews.map { $0.sizeThatFits(.unspecified) }

        var totalHeight: CGFloat = 0
        var totalWidth: CGFloat = 0

        var lineWidth: CGFloat = 0
        var lineHeight: CGFloat = 0

        for size in sizes {
            if lineWidth + size.width > proposal.width ?? 0 {
                totalHeight += lineHeight
                lineWidth = size.width
                lineHeight = size.height
            } else {
                lineWidth += size.width
                lineHeight = max(lineHeight, size.height)
            }

            totalWidth = max(totalWidth, lineWidth)
        }

        totalHeight += lineHeight

        return .init(width: totalWidth, height: totalHeight)
    }

    func placeSubviews(in bounds: CGRect, proposal: ProposedViewSize, subviews: Subviews, cache: inout ()) {
        let sizes = subviews.map { $0.sizeThatFits(.unspecified) }

        var lineX = bounds.minX
        var lineY = bounds.minY
        var lineHeight: CGFloat = 0

        for index in subviews.indices {
            if lineX + sizes[index].width > (proposal.width ?? 0) {
                lineY += lineHeight
                lineHeight = 0
                lineX = bounds.minX
            }

            subviews[index].place(
                at: .init(
                    x: lineX + sizes[index].width / 2,
                    y: lineY + sizes[index].height / 2
                ),
                anchor: .center,
                proposal: ProposedViewSize(sizes[index])
            )

            lineHeight = max(lineHeight, sizes[index].height)
            lineX += sizes[index].width
        }
    }
}