What are the specific meanings of several proxy settings?

[allegra]

My OS is Windows 11 and the qbittorrent version is 4.4.2.
I would like to know what is the difference between the following four ways of proxy settings:
1.

2.

3.

4.


In other words, I would like to know the exact meaning of "Use proxy for peer connections" and "Use proxy only for torrents" and the effect of entering only the Type, Host, and Port of the Proxy Server without checking the other two checkboxes.

Thank you.

[Peter]

Simply hover your mouse cursor above the said options.
The tooltip will tell you what they mean exactly.

In my opinion:
Use proxy for peer connections - Turn ON. If this is not ticked, the traffic to peers, like other people/peers will simply go through your normal connection. Your proxy IP will show up on the tracker, but your own IP will transfer data.

Use proxy only for torrents - Turn OFF. Should not make a big impact, like RSS traffic is negligible and should work just fine. If your proxy causes issues to these functionalities, turn ON the box.

IF you don't tick any of the boxes: qBittorrent will contact trackers with your proxy, but will transfer data directly to-from people with your normal IP/connection. And it will use your normal connection for RSS, checking for new version, that sort of stuff.


Ps.: Most tracker software I saw kept all their connections in memory, so honestly, there is not much point in using a proxy without "peer connection" on. Like, without that, only the tracker will receive the proxy IP and no one can check out the current peers because if the server gets taken, they get shut down and all the data in the memory will be simply lost.

[allegra]

Simply hover your mouse cursor above the said options.
The tooltip will tell you what they mean exactly.

In my opinion:
Use proxy for peer connections - Turn ON. If this is not ticked, the traffic to peers, like other people/peers will simply go through your normal connection. Your proxy IP will show up on the tracker, but your own IP will transfer data.

Use proxy only for torrents - Turn OFF. Should not make a big impact, like RSS traffic is negligible and should work just fine. If your proxy causes issues to these functionalities, turn ON the box.

IF you don't tick any of the boxes: qBittorrent will contact trackers with your proxy, but will transfer data directly to-from people with your normal IP/connection. And it will use your normal connection for RSS, checking for new version, that sort of stuff.


Ps.: Most tracker software I saw kept all their connections in memory, so honestly, there is not much point in using a proxy without "peer connection" on. Like, without that, only the tracker will receive the proxy IP and no one can check out the current peers because if the server gets taken, they get shut down and all the data in the memory will be simply lost.

Thank you very much, you solved my question perfectly. I didn't notice before that I could see the instructions by hovering my mouse cursor above the options.
My network environment is a bit special. I can't connect to the tracker directly, so I need to use a proxy to connect trackers. In my area, BT has no legal risk and I don't worry about exposing my IP, so I don't need to use a proxy for peer-to-peer connections.

I'm a little confused about your Ps.
Suppose I have connections to peers B, C, and D through tracker A.
Do you mean that if I only proxy tracker, when I can't connect to tracker A I won't be able to connect to B, C, and D either. But if I use both proxy or no proxy, even if I can't connect to the server, I can still connect to peers B, C, and D.