This stick is only used to connect a device that does not have an integrated WLAN to the WLAN via the USB interface. What you are looking for is a WLAN access point. This is connected to the network like your PC via LAN and then provides WLAN connections (PC independent) as a hotspot. You will find these under Network / Access Points. Depending on the speed, the price starts at around 40 euros. Hope this helps a little?

Ja funktioniert einfach Treiber von TP-Link Homepage runterladen und installieren. https://www.tp-link.com/de/support/download/tl-wn823n/

Mine is V2. But it is also older :-)

If you use a cable, you will not have a WiFi connection. Provided you have a free USB port, you can disconnect your cable after installation. As always, the router must of course be within range!

I'm not quite sure I understand your question. It's that this stick is only there so that your PC can connect to a WLAN. That is, for PCs that do not have a WLAN module. But you still need an internet connection with WLAN, otherwise the stick is of no use to you.

Yes, run it under Windows 10.

Unfortunately, the manufacturer does not give any information about the chipset, but I found information on a hardware wiki that these are operated with a Realtek chipset. Source: https://wikidevi.wi-cat.ru/TP-LINK_TL-WN823N_v2

I received the V3 TL-WN823N(EU) Ver: 3.0 P/N:0152502215

We work with different suppliers and daily prices, which can cause such a fluctuation.

I cannot answer from experience for this combination of TV & adapter. But the answer is probably NO. This is because the operating system of such TVs usually only includes drivers for the internal WLAN module or for any external modules offered by the manufacturer as accessories. Most sticks from third-party manufacturers will therefore not work as a rule. What might work, however, are devices that function as WLAN clients themselves but are not connected to the TV via USB but via Ethernet. For example, there used to be the useful little Netgear WNCE2001which could even be powered via USB and "hidden" behind the TV without any problems. Unfortunately, it has not been available for some time. I don't know if there is currently a similarly space-saving alternative at Digitec. (Larger "boxes", i.e. mostly APs that are operated in client mode, are of course available in large numbers... but they may not be so inconspicuously "concealable" and so easy to supply with power).

I only use the device with Windows 7 and Windows 10 PCs.

Yes, the Windows 10 driver is on the TP-link site via the URL referenced in the printed materials provided. I never looked at the CD-ROM that came with the product, as the drivers on those are usually out of date. Works well with W10.

No it isn't Linux compatible.