the updater whent with out any issues

Hello!
So I got half way through answering this and then the net crashed.
*folds arms and lets out petulant humph*.

In any case hopefully I am about to answer most of your questions post 3:
1. Multiple tasks: Make sure to kill all tasks, then launch luna, make sure it is the latest version. Upon launch you may notice several tasks at first while the program checks your feeds for updates, but these will disappear once the checks are done.

2. Downloads: Some podcasts organise their episodes to where every file is media.mp3. In that regard in 3.4 an info table was introduced where unique identifiers would be assign to each file so that they would not overwrite each other. In 3.5 this was modified slightly so that if you look at the file name, it shows the unique identifier followed by the episode name.

3. Deleting downloads, head to rss data/feed name/downloads, delete at your leisure.

4. Deleting feeds, you can either do this from within the program, or just delete the folder with the feed name in your rss data folder.

5. the Howtogeek feed.
I took a look at this and it is indeed very curious.
When viewing the link from the web browser, it does indeed show the rss feed. If you attempt to load it from within Luna though, I even went so far as to load it step by step through the process, you are instead given a slightly less useful, more faulty feed.

Luna, bless it, keeps trying to understand why and figuring out a way it can get the feed for you, this is likely why you are seeing multiple tasks.
I hope this answers your questions.
Edit: Literally just after posting this I noticed you are using http:// I also recalled earlier that when I glanced at the status of the feed by right clicking on it it said perminently moved.

Try this one instead, it works for me!
https://feeds.howtogeek.com/HowToGeek

@dardar I'm surprised you don't have a donation button, or at least an email connected to a Pay Pal account or paypal.me link.

@5 I shall follow your steps right now and see what happens.

@6 why would I?

Thanks, adding the s to the http in the How to Geek feed did the trick. I'm still having the issue of the program opening multiple processes and not closing all of them, even when I press Alt F4 to choose the exit button. The system tray icon still appears and pressing enter on it opens the program again. Closing it deletes the icon from the system tray, but it seems like some processes are still running.

The status field says next update. I just discovered that the program doesn't actually close when you press AltF4. I have to press the exit button in order to get it to disappear from the system tray. however, there are still a couple of processes listed in Task Manager called Luna RSS.exe even though I'm pretty sure the program should be completely shut down.

12 i think you can change that behaviour on settings
13, well if someone wants to donate, they can do it through the website

I can confirm that, even when pressing the exit button, there are two processes for LunaRSS.exe which need to be manually killed in Task Manager. I'm very happy to report that downloading of entire archives is working as expected though, this was a feature I was sorely missing in the previous update of the program.

@Dardar
I finally tried this program and I'm really enjoying it!
I do wish that activating the desktop icon would put you back in the same instance rather than starting a new one, that errored feeds would delete properly from within the program, and that you could schedule updates more specifically, but aside from that my only other gripes, the Alt B shortcut not working when browsing a feed, the bug report option not working, the time and volume sliders in the media player not being labeled ETC, are very small.
However, I am having a problem with two feeds that refuse to pull up the stream/download menu when I press enter on an episode, and they are both from podbean and both in .xml format.
https://gammaradio.podbean.com/feed.xml
https://warstoriesofficial.podbean.com/feed.xml
Thank you very much for taking the time and effort to create this for us, and I would really appreciate it if you could check out those feeds when you get a chance.