This term is probably the largest difference. Defined in an old covenant it means very specific instructions, broadly the command to cease work. But this is only in a old covenant vacuum. We have the greater revelation and a fuller picture of what role the 4th command has.
Fundamentally the 4th is inherited from to 7th day. The 4th does not define the 7th day but rather the 7th defines the 4th commandment. Going back to the 7th day it is not Infact about ceasing, it is about completion.
God does not arbitrarily stop working he also does not stop because he is tired, he stops because the work is finished. For example if I'm finished digging a hole a stop digging a hole not because it's quiting time or I'm tired, but because the job is complete so there is no need to continue to dig.
In fact the entire creation account is a salvation metaphor where we start in darkness, light is spoken into us starting a process that ends in completion. The NT calls this the new creation (2 Cor 5:17) and yes the language is intentional saying old things have passed away revealing the creation account is actually about salvation through Christ. This is also revealed in 2 Cor 4:6 and this work in progress as a Christian can be seen throughout such as James 1:4.
This process of completion is the goal in the new creation to finish the work of Christ in us to ushers in completion, and this state of completion in Christ is a parallel to the 7th day. This is what the 7th points to and by inheritance this is what the 4th commandment echos.
The 7th day/creation account has many layers, it forshadows Christ. ie. God sends light into darkness, Christ "utters it is finished" on the 6th day, (lit. and symbolically) which is his completed work, then resting in the grave, then reapting the 1st when light is spoken a new or his resurrection. Creation forshadows the restituion of all things, the resurrection even the second comming of Christ. It is a base typology account with a base structure that is repeated and echoed through out time.
when I hear people limiting the 7th day to a old covenant vacuum it's grossly lacking and just plain misinformation. We can react to the 7th day using all revealed revelation we have access to not just what's written on tablets explicitly revealed as "the two tablets or covenant law" (Ex 31:18) that covenant is the mosaic covenant which the tablets are under, rather than regarded as universal moral law they are old covenant law rooted in universal constructs.