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"(except for Calvinists, who allow little or no room for free will)"

That must be why they have a whole chapter in the Westminster Confession of Faith titled "Free Will"

Chapter 9:
Of Free Will

9:1 God hath endued the will of man with that natural liberty, that is neither forced, nor by any absolute necessity of nature determined to good or evil (Deu_30:19; Mat_17:12; Jam_1:14).

9:2 Man, in his state of innocency, had freedom and power to will and to do that which was good, and well pleasing to God (Gen_1:26; Ecc_7:29); but yet mutably, so that he might fall from it (Gen_2:16, Gen_2:17; Gen_3:6).

9:3 Man, by his fall into a state of sin, hath wholly lost all ability of will to any spiritual good accompanying salvation (Joh_15:5; Rom_5:6; Rom_8:7): so as, a natural man, being altogether averse from that good (Rom_3:10, Rom_3:12), and dead in sin (Eph_2:1, Eph_2:5; Col_2:13), is not able, by his own strength, to convert himself, or to prepare himself thereunto (Joh_6:44, Joh_6:65; 1Co_2:14; Eph_2:2-5; Tit_3:3-5).

9:4 When God converts a sinner, and translates him into the state of grace, He freeth him from his natural bondage under sin (Joh_8:34, Joh_8:36; Col_1:13); and, by His grace alone, enables him freely to will and to do that which is spiritually good (Rom_6:18, Rom_6:22; Phi_2:13); yet so, as that by reason of his remaining corruption, he doth not perfectly, nor only, will that which is good, but doth also will that which is evil (Rom_7:15, Rom_7:18, Rom_7:19, Rom_7:21, Rom_7:23; Gal_5:17).
9:5 The will of man is made perfectly and immutably free to do good alone, in the state of glory only (Eph_4:13; Heb_12:23; 1Jo_3:2; Jud_1:24).