Blender is developing intensively and new versions of the program are released quite quickly. In this case, compatibility often suffers – when we open a project created in earlier versions of Blender, it can be opened not correctly. Sometimes this happens because Blender stores all user interface (UI) settings and options in every .blend file. Opening a project with the Load UI option unchecked can help.
In this case, Blender only loads the project itself, without any UI settings that may have changed in the current version.
If you often have to open projects created in different versions of Blender, the Load UI option can be disabled globally.
Open the Preferences area, switch to the Save and Load tab, and uncheck the Load UI option in the Blend Files section.
Now any project will open without loading the UI by default.