Wow alooot, do you feel better having gotten this off your chest?
Curious are you playing on the tv through a laptop, or computer? If it's a laptop it's probably why your experiencing issues with pixalation and things. Some crap out on graphics when using a tv. Mine for instance does.
The problem with fixed camera is that it's fixed, meaning your having to continueally turn to look at things. Instead of simply rotating the camera around, zooming in and out, and adjusting it to fit you. There is an option if you press 'O' key to do that not sure if it'll follow you or not, I personally hate this tactical view.
As for hotbar look at my hotbar is a hot mess post. It depends on what resolution your using, thing it was something 1280x700 or something that fixed alot of the issue with me. Cause i was ready to hurl furniture with it before I dug around in my settings. It also cleared up alot of the issues with camera, things being hidden off screen etc.
Your homebrew is hey thats on you. Though seems to be rather unbalanced in the long run. 2 feats, possibly 3, plus dragon breath, eventual flying, plus ability score modifiers....
Next paragraph.. this is based on 5e, not 3e, not 3.5, or 4. I myself prefer 3, and 3.5 but they're sadly relics. Inventory management is part and parcel of D&D, buuut if you right click you can send stuff to your camp leaving you free and clear except what your wearing. Most potions are already a bonus action to drink, the throwing though is an action same as in the rulebook for 5e. Plus to top it off Larian is already doing the 'homebrew' it's just their home brew. and like all home brews it's needing tweaking.
What I'm reading is this you like to simply win with no thought as to balance. Noticeably your homebrewed race which if played correctly will decimate any encounter and cause him to shine while the more balanced races are sitting back doing nothing. The same goes if you simply add max hp, and a feat, plus ability score adjustment. These all lead to unbalancing in any campaign, especially when larian has admitted their looking to balance the fights in EA.
going to skip a bit. What was said by Larian is that from their statistics most people tend to go the Good path, yet they want statistics from the evil path, so would like people to play that as well. They didn't even hint that the game was balanced for an evil play through. They simply want statistics from the evil path, more then they have recieved from their previous games. They need/want these statistics to see if the Evil campaign needs to be balanced as well. (which from what I can see of the game so far will need to be done.)
