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Pretty much. I reckon the highest impact this will have is BitLocker bypass if you depend on secure boot (the mode where there's no boot time passphrase screen, just the regular login dialog - which was never a good idea).
Technically you can do that with LUKS too (it takes some effort though). It's better than nothing (if you can't afford a boot time password), but you have to take the added security with a huge grain of salt.
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