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vertical-workspaces
V-Shell is a GNOME Shell extension that allows you to customize the layout and behavior of the Shell UI.
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advanced-alttab-window-switcher
A highly customizable replacement for Gnome Shell's Alt-Tab window and app switchers.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Available on GitHub , the final version 24 will be available on e.g.o site soon.
Also try my AATWS extension. It offers it's own dock mode with hot edge, can be triggered on any monitor and gives you direct access to apps and windows including full-size previews and search. The latest version in the GitHub repository also offers the workspace thumbnails.