no offense but it feels like babysitting (idk what's the word for it)
since we can actually look for a specific game/DLC/software using the search feature, we can just enter the giveaway with lowest entries ourselves

https://www.steamgifts.com/discussion/1kgzB/new-search-parameters

You can use "entry_max=" to only show giveaways that have less than a certain number of entries, but you may miss out on multiple copy giveaways that have higher entries that you would want to enter.

Edit: Also, there might be scripts that will allow you to do what you want. I'm not sure but ESGST might be able to, I didn't check. I'm pretty sure it will show you the information you want, but I don't know if you can use it to filter the giveaway list.

My main giveaway list is only a few pages long, so I personally just check them manually :)

As noted above, doing a search off entry_max and copy_min will let you get all the results you want, within two searches, with very little loss of optimization compared to what a new, specialized parameter would offer. That said, cg doesn't seem opposed to adding new parameters, and that seems like it'd just be an easy blend of entry_max and [copies/entries], so cg may decide to add it (or update the existing entry_max parameter to factor in multiple copies) regardless.

That said, winning six value menu McDonald's burgers doesn't beat out winning a Steak, so I can't at all follow the mentality which favors entering games off of win rate rather than desire. Just remember, no matter how bad a game may be, you're potentially taking it from someone who actually wants to play it- please consider only entering for games you actually plan to play.

How about a script to enter everything for you too?

OH WAIT.

Is there some way to see only giveaways of a certain level?

For example, I'm in level 4, some way to only see giveaways of that level.