HI!
Studio Neo is a good tool to start animating with. Keep in mind that all the extra mods are optional, most cases you will never gonna use them all, but just in case you may have an eye on all the new stuffs.
For example: Years ago there wasn't a good coom representation in studio, only the default and Hooh's stuff. now we have a Fluid mod that works pretty good but as I see, it needs more improvement.
There is a complete word of Hair styles and types, some of them are rigid while other have bones to customize some movement...but now, we have some Real-time phisics hair styles, as well as some clothes.
There are new Dynamic-movement mods, sound mods, particle mods and so on.
My instalation is the slim one, only the studio neo without mods. but aside I have a largue collection of mods Stored in an external 1TB driver, Paywalled and Free, In the case I open a downloaded scene and the program prompt me of missing mods I go to my external disk and copy them to MyMods Folder. If the mod is good or usefull, I keep it, otherwhise I discard it.
maybe this practice is a nuisance, but as for me, I has help me a lot to know and understand a variety of mods.