Aside from the name it looks like these are more or less the same thing. Is that right?
Are there some critical differences to watch out for?
Procedurally I think they required the same actions to acquire patent. Homesteads are based on the sectional breakdown. DLCs were created out of necessity since the Oregon territory was opened for settlement prior to the established of the local PLSS. The original settlers marked out their claims which were then referenced to the PLSS as the government surveyors came through. DLCs are only found in Oregon and Washington west of Cascades. Survey wise, they are handled similarly to ranchos in California.
The DLC Act and the Homestead Act of 1862 had some stark differences. Under the Homestead Act you had to be head of household, 21 or over, and a few other things. Under the DLC Act you needed to be 18 or over, a citizen, person in the process of becoming a citizen. or certain indians.
It is worth the read to catch the other differences in the several Acts leading to patent. It can keep you from missing critical provisions that impact the rights (or lack thereof) of owners.