 So you don't understand beveling. Not a problem. Edge bevel simply terms the edge loop you click on into a beveled area. Edge loop complete means it will follow the edge loop all the way around the object completely. Edge loop partial means it will bevel everything until it reaches a point that is not connected to four edges. So if we click here you can see that every point is connected to four edges so it goes all the way around. But if we click here these points right here only have three edges connected to them so that is where it stops the bevel. Polyloop is very similar to edge loop complete but instead of beveling the edge you click on it bevels the edge perpendicular to the one you click on. All the other bevel options are the same as usual the number of segments you want each bevel to have is controlled here. You can have one row, two rows, four rows, or eight rows. Linear edge means the space between each segment is equal. Sharp edges move most of the segments towards the edge which can be better seen in subdivision and soft edges have most of the segments towards the middle which again can be easier to see in subdivision. And last you can set a custom segment distance if you want over here. Hope that helps and as always I hope you have a fantastic day and I'll see you around.