You currently can start Reaper with "new project" instead of the project you last worked on. By default Reaper installs with that as part of your start menu. (There are several ways of starting Reaper and they're all in the start menu "REAPER" folder.)
You can also load a project with effects offline. If you use the above option (start new project when opening Reaper), then go to the "open" menu, in the dialog box you can tick "open with fx offline".
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