I can set the voltage and current of the TMC2130 driver manually. But, in which cases some of the components could burn up?
The driver has a potentiometer to change the voltage that is giving to the motors.
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As one person answered me in another question, I would need 3.2 V to make the motor work well (2. Ω * 1.3 A = 3.2 V).

You are misunderstanding that answer and what the potentiometer does. The potentiometer does not control the voltage going to the motors. It makes no sense to compare this voltage to the rated voltage of the motor. The potentiometer controls the current going to the motor, with a potentiometer voltage of 0V corresponding to 0% of the driver's current, and a potentiometer voltage of 2.5V corresponding to 100%. The documentation of your driver is a bit unclear but it looks like the maximum peak current is 1A per phase or 0.7A RMS (per phase).

There is a file in the Marlin firmware (Configuration_adv.h) where I can set the current that the driver is going to give to the motors.

This only works if the driver is set to SPI mode, otherwise the setting is ignored. To enable SPI mode you need to remove the jumper resistor labeled &quot;SPI&quot; mode and make connections to the long pins sticking out the top of the driver. This configuration option overrides the current setting set by the potentiometer.

What I am going to do is to set the drivers potentiometer to the maximum and check what happens. And I will also set the current in the Marlin to 1838.5mA

That's not such a good idea. It would be wiser to set the potentiometer relatively low, and increase it just enough so that the motors do not skip steps.

As the drivers have less voltage to give to the motors, are my drivers going to burn because they will have to give more current for a long period of time?

No, because the drivers do not have &quot;less voltage to give to the motors&quot;. They don't work that way. They are constant current drivers.

Or will the stepper motors burn because they won't get enough current or voltage?

No. The only thing that could cause the motors to burn is (far) too much current or voltage. This will never happen because your drivers will burn up before the motors ever would.
Keep in mind that in the question you linked to, one answer is more detailed than you can reasonably understand with your level of electronics knowledge, and the other answer is completely wrong.
Summary

The current setting in configuration_adv.h is irrelevant unless you have enabled SPI (but I doubt that you have)

Do not start out with the potentiometer set to maximum

Everything will be fine. The motor can handle more current than the driver can ever deliver. The driver you have is configured so that it can never exceed its rated current.


Regarding your update
Yes, if you are using SPI current control then the potentiometer is ignored.
The TMC2130 can handle 1.2A RMS per coil, though the datasheet notes that more than 1A RMS per coil requires special attention to heat dissipation (the small breakout PCB probably does not have great thermal properties).
Your calculation is overly conservative because it treats the 1.2A figure as peak current when RMS current is meant. You do not need to divide by $\sqrt{2}$ to convert to RMS because the figure already is RMS.