It's a budget proposal as noted in the OP.
You can call it a budget if you like, but it is not.
A budget is one which discretely looks at expenditures during the course of the year. This 'budget', besides being more than a year, is more of continuing resolution of expenditures from prior years.
All these departments made requests to be included within the budget. Little real work has been done by Congress to investigate the worthwhileness of the expenditures.
At the very least, any item within the budget should have a remark by Congress on its constitutional basis; if it does not contain, it should be discarded.
To demonstrate how laughable this 'budget' is considered by Congress, a 'cut' in the budget merely means that approval is made of a lower number not from prior years, but of the requested amount of the department which may be much higher than last year. In other words, a 'cut' can actually increase the budget. Only in DC.
That is asinine and indicative of how we have become a top-heavy bureaucratic nation instead of a republic nation, and why we have a runaway debt we have to service.