Developers using Vita3K (the PS Vita emulator for PC) often need the original firmware font package to correctly render system text. Emulators do not ship with Sony’s proprietary fonts for legal reasons, so users must source the font folder themselves.
If you need to restore your Vita’s fonts, —but not from a random Google Drive link. Use the PUP extraction method or the verified Internet Archive collection. Never pay for a font package; it is always free and homebrew-friendly. ps vita firmware font package link