Actually its other way around, as Lordship advocates such as Dr Macarthur and Sproul are Calvinists, while Free Grace such as Zane Hodge arminians
50 years ago I had to write a thesis on Free Grace verses Lordship grace. Now it has been awhile since I have considered this but if my memory is correct, the
"free grace movement" contends that salvation is by grace alone, through faith alone, in Christ alone.
But there is a rub in that There is no repentance and/or turning from sin necessary at the moment of salvation. Saving faith in Christ does not necessarily result in a life of good works, obedience, and following Christ.
"Lordship salvation" contends that while salvation is by grace alone, through faith alone, in Christ alone,
salvation is also a call to turn from a life of embracing sin and rejecting Christ to a life of rejecting sin and embracing Christ.
Saving faith will always and inevitably result in a transformed life of good works, obedience, and following Christ. Spiritual growth is greatly dependent on discipleship, but even an un-discipled believer will exhibit some spiritual fruit. It is not possible for believers to remain in a carnal state of
known sin for their entire lives.
From the extremes of both sides of some
lordship salvation advocates say that Free Grace is easy believism and/or cheap grace.
Some
free grace advocates claim Lordship salvation is a works-based salvation.
For me, I believe that Salvation is by grace alone, through faith alone, in Christ alone.
I also believe that repentance is a change of mind from an embrace of sin and rejection of Christ into an embrace of Christ and rejection of sin.