Is one who does not chant the Quran, such as one who does not roll the "raa'" or one who pronounces the "alif" with a heavy intonation in the French manner due to its influence on the Algerian dialect, considered sinful? And is this considered a distortion, or must the "alif" be pronounced as in classical Arabic?

Allah commanded the tartīl (measured recitation) of the Qur’an, and Ali (may Allah be pleased with him) explained tartīl as "beautifying the letters and knowing the pauses." Ibn al-Jazari emphasized the obligation of tajwīd, saying: "And adopting tajwīd is an absolute necessity He who does not perfect the Qur’an is a sinner." Mulla Ali al-Qari distinguished between obvious (jali) and subtle (khafi) errors in recitation, considering sin to apply to the obvious errors, not the subtle ones. Therefore, one must strive to master the pronunciation of letters and give each letter its due. Deliberately violating this is not permissible. As for violations due to an accent or foreign tongue, these fall under subtle errors for which one is not sinful, but one must strive to pronounce correctly.