WLAN Access Points - but which ones?

Wrong highlight?

But thanks for that, I’ll add right away that Mesh does not affect the bandwidth at all. That’s the whole point. What an access point does via cable, Mesh does over its own dedicated wireless network, so the "actual" Wi-Fi remains undisturbed. This eliminates the disadvantage of a repeater.

but only with the repeaters that have an "extra channel" for that....

for example, the 1750e from AVM does not.... they "optimize" a bit so that if your device, for example, uses up the 2.4 GHz network, the repeater communicates with the box over 5 GHz... or vice versa....

You are right in the sense that the "new" devices cheat there and thus the bandwidth is effectively not halved..... which would be the case with "real" repeater operation (2.4 GHz is repeated by a 2.4 GHz-only repeater, for example)
Mesh has nothing directly to do with that.... for example (to stay with the 1750e), it could do so-called crossband repeating long before Mesh was "invented".... Still, it is not optimal.

The best (for Wi-Fi devices) remains ..... access point (whether special or repeater in access point mode, it doesn’t matter) connected via LAN....

but only with repeaters that have an "extra channel" for that....

e.g. the 1750e from AVM not.... they "optimize" a bit so that if, for example, your device is using the 2.4GHz network, the repeater communicates with the box over 5GHz... or vice versa....

You are right in that the "new" devices trick there and thus the bandwidth is effectively not halved..... which would be the case with "real" repeater operation (2.4GHz is repeated by a 2.4GHz-only repeater, for example)
This has nothing directly to do with mesh.... e.g. (to stay with the 1750e) it could do so-called crossband repeating long before mesh was "invented".... Nevertheless, it is not optimal.

The best (for WLAN devices) remains ..... access point (whether a special one or a repeater in access point mode, it doesn’t matter) connected via LAN....

Then it is not, in my opinion, mesh. With mesh, a second network is opened in a different frequency band to manage communication between the repeaters. That is the purpose of the exercise.
Additional features come with it such as improved roaming, etc.

But mesh also affects the bandwidth significantly. Just not quite as much. Repeater 50% per hop with mesh < 50%

Yesterday I connected the first cables to the patch panel and then attached the AVM Access Point as a LAN bridge. The coverage is now very good everywhere. Now all that is missing is our DSL connection...

Good morning everyone,

I currently use the Fritz Box only as an access point or have configured it so that the DSL signal comes from another router. Does anyone know if I can still create a single Wi-Fi network with a single SSID using the access points?

Does anyone know if I can still create a single WLAN with a single SSID using the Access Points?

Sure. Why shouldn't that work?