It is widely used because:
to add "Tamil (India)" or "Tamil (Sri Lanka)." This automatically installs a suite of standard Tamil fonts and keyboards. You can also find free font packs on the Microsoft Store
allow you to type in legacy fonts by selecting the correct "Font Encoding" (often STMZH or similar proprietary mappings used by Sangam fonts). Typing in Design Software Open your software (e.g., Photoshop or MS Word). Apt Sangam from the font list.
While APT Sangam is excellent for Unicode-based work, be cautious:
