Of course you are right ... well there is a choice.
One note: if we are dealing with a series of reflections, a directional antenna with a low half-power angle is not recommended.
Reception of TV signals in densely built-up conditions is quite a challenge, and from the room level in the apartment ... special.
Room antennas for DVB-T reception are a lottery, the success of which depends on many unpredictable variables (ignoring the fact of their construction - wire + amplifier).
In general, the reception in the room itself is in a sense a misunderstanding, although I admit that sometimes it works. But the multiplicity of conditions (type of walls, floor of the room, location of windows in relation to the transmitter, size of windows, type of glass (technology), number of furniture) as well as the distance of the transmitter, its power, ... all this makes success difficult to achieve. it is definitely not permanent. Let's not forget that this "unfortunate" signal must first get into the room somehow, and then, after repeated reflection, be lucky to get into the antenna ...
External antennas should be used wherever possible, i.e. almost everywhere.
In the micro scale (room) it is easier to change one parameter - and the whole puzzle will collapse, e.g. moving a wardrobe or a new piece of furniture.
On a macro scale it is more difficult, but also possible - they will build a house outside the window or the tree will grow.
Antennas with a wider "field of view" (large half-power angle) have greater possibilities of receiving the signal from reflection - you do not need to precisely set the direction, which in the conditions of the proximity of obstacles (dense buildings on the estate, street) is an important and beneficial feature. I have already written about the reception in the rooms.