I'd have concerns about security with all these Chinese makes like Hikvision and others, including EUFY, and especially if a brand name is unknown. You simply don't know where the feed ends up and how it's used later.
That's why the Hikvision I have is a plain CCTV system, it needs no Internet connection to work. Cameras can be viewed in VLC directly, settings can be edited without the plugins (they are just to make playback/live feed work). Exporting recordings can be done from the DVR itself to a USB stick. So its cumbersome, but avoids any third-party apps or plugins.
On the VLC. What settings do you change? I can only get an old version (3.0.2) of VLC to work to view them. I change the Demux from Automatic to either H.265 or H264 and it works. But on newer versions of VLC it doesn't work for me. Do you change any other settings?
From the VLC forums I've noticed when viewing CCTV playback it seems to be hit and miss for many people. Some versions work for some people while others work for other people. I'm sure there is a setting I'm missing to make it work on a newer version of VLC.
vlc --cr-average=10000 --network-caching=500 rtsp://guest:Password0@cctv.lan:554/Streaming/Channels/101/
https://news.sky.com/story/amp/perth-and-kinross-council-stops-buying-chinese-manufactured-surveillance-cameras-after-security-risk-warning-12822810
One of the annoyances I find with a lot of cameras on the market is 1. most want a live internet connection, and 2. most only offer cloud storage.
It can take a while to find one that has local storage, and can operate without connecting to the Internet.
Fresh from the newsroom about Hikvision
https://www.bbc.co.uk/news/technology-65975446.amp
Panorama could not run the camera on a BBC network for security reasons - so it was put on a test network where there is no firewall and little protection.
The camera Panorama tested contains a vulnerability discovered in 2017. IPVM's director Conor Healy describes this as "a back door that Hikvision built into its own products."
Hikvision says its devices were not deliberately programmed with this flaw and it points out that it released a firmware update to address it almost immediately after it was made aware of the issue
So they are talking about a 6 year old bug that was fixed via firmware almost immediately, that was done on a network with no firewall at all.
All my surveillance cameras are Chinese, including a Hikvision. Fantastic piece of kit and great value for money.
We now know that the camera was in fact supplied by, and compromised with the collaboration of IPVM, an organisation with a vendetta against Hikvision.
https://www.hikvision.com/content/dam/hikvision/uk/marketing-portal/catalogues/Letter-to-partners-BBC-Broadcast-26.06.23.pdf