It looks like the close button should be available in Snackbar out of the box
Snackbar] Close button · Issue #3049 · material-components/material- components-android · GitHub
snackbar · GitHub Topics · GitHub
Snackbars - Material Design
GitHub - kannadasbe/Android-Material-Snackbar: Android Material Snackbar Example
Snackbar: transition does not work with SnackbarContent · Issue #16637 · mui/material-ui · GitHub
GitHub - material-components/material-components-android: Modular and customizable Material Design UI components for Android
Snackbar pushing page down on android · Issue #243 · nativescript-community/ui-material-components · GitHub
Snackbar pushing page down on android · Issue #243 · nativescript-community/ui-material-components · GitHub
Snackbar Component Backendless Marketplace
snackbar · GitHub Topics · GitHub
Snackbar not closing · Issue #1398 · material-components/material-components-web · GitHub
Snackbar] Close button · Issue #3049 · material-components/material- components-android · GitHub
GitHub - material-components/material-components-android: Modular and customizable Material Design UI components for Android
Android Compose Material] 1. Compose에서 Snackbar을 만드는 방법 : Scaffold를 이용해 Snackbar만들기 — 조세영의 Kotlin World
Android Material Design 系列之SnackBar详解- shaotine - 博客园