Look, quite a lot of new timber is used to produce toilet paper. But OP was complaining about people cutting trees to take notes. Seems reasonable to ask if they also have a problem with toilet paper, which probably will use more wood pulp over the life time than their notebooks ever will.

I take a shower immediately after a dump

Have you done the math on this?

My gut says this seems, worse somehow.

Using a 9 l/min shower head for a 6 minute shower results in 54 litres of water being consumed. 54 litres heated from ambient (say; 15 deg C) to shower temperature (say; 40 deg C) requires 1.6 kWh of energy.

Most toilet paper is recycled so it’s a matter of figuring out how much the recycle process consumes per roll, then dividing it by the amount of average toilet paper segments a person uses.

EDIT: Lloyd Alter of the website treehugger.com reports that making a single roll of toilet paper requires 37 gallons of water, 1.3 kilowatt/hours (KWh) of electricity and some 1.5 pounds of wood.

So a whole roll is less than a shower, but I guess it also depends how the energy is being generated; because there are indications that toilet rolls are not entirely recycled, most use some amount of virgin wood.

Anyway, my point is not "you're wrong", my point is that it's a lot more nuanced than people think, and often the "green" solution can be less green but make them feel better.

I simply answered the question. I have zero doubt taking a bath is worse than using sane amounts of TP

A bidet uses far less water than a shower.