In what way does Windows fulfill a 'kiosk' display mode better than Linux for you? Are you looking for permanent installations or just temporary lockdown to a single application. One of the more modern and straightforward methods currently is using cage.

Cage lets you spawn a Wayland compositor from command-line (or via system service, obviously) that launches either a singular or multiple exclusively-fullscreen applications.

It's been years since I took a look at this but I vaguely remember a handy kioskrc config file under xfce4...

found it...

KDE Plasma desktop and apps also have a Kiosk mode/framework for deployment and lockdown built-in, that can come in handy

Kiosk - Simple configuration management for large deployment

The Kiosk framework provides a set of features that makes it possible to easily and powerfully restrict the capabilities of a KDE environment.

Introduction

The Kiosk framework provides a set of features that makes it possible to easily and powerfully restrict the capabilities of a KDE environment based on user and group credentials. In addition to an introductory overview, this article covers configuration setting lock down, action and resource restrictions, assigning profiles to users and groups and more.