diff --git a/CHANGELOG.md b/CHANGELOG.md
index e82da0f1..19776e4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - MongoDB `authSource` defaults to database name per MongoDB URI spec instead of always "admin"
+
+### Fixed
+
+- Onboarding "Get Started" button not rendering on macOS 15 until window loses focus (#420)
 - MongoDB collection loading uses `estimatedDocumentCount` and smaller schema sample for faster sidebar population
 
 ## [0.22.1] - 2026-03-22
diff --git a/TablePro/Views/Connection/OnboardingContentView.swift b/TablePro/Views/Connection/OnboardingContentView.swift
index dd465c27..7ad88caa 100644
--- a/TablePro/Views/Connection/OnboardingContentView.swift
+++ b/TablePro/Views/Connection/OnboardingContentView.swift
@@ -184,6 +184,7 @@ struct OnboardingContentView: View {
             .buttonStyle(.plain)
             .foregroundStyle(.secondary)
             .opacity(currentPage == 2 ? 0 : 1)
+            .frame(minWidth: 110, alignment: .leading)
 
             Spacer()
 
@@ -200,23 +201,25 @@ struct OnboardingContentView: View {
 
             Spacer()
 
-            Group {
+            ZStack {
                 if currentPage < 2 {
                     Button("Continue") {
                         goToPage(currentPage + 1)
                     }
                     .buttonStyle(.borderedProminent)
                     .controlSize(.large)
+                    .transition(.opacity)
                 } else {
                     Button("Get Started") {
                         completeOnboarding()
                     }
                     .buttonStyle(.borderedProminent)
                     .controlSize(.large)
-                    .transition(.scale.combined(with: .opacity))
+                    .transition(.opacity)
                 }
             }
-            .animation(.easeInOut(duration: 0.35), value: currentPage)
+            .animation(.easeInOut(duration: 0.25), value: currentPage)
+            .frame(minWidth: 110, alignment: .trailing)
         }
         .padding(.horizontal, ThemeEngine.shared.activeTheme.spacing.xl)
         .padding(.bottom, ThemeEngine.shared.activeTheme.spacing.lg)