Do I have to stabilize a desk (2m, solid wood)?

I've been looking for a good and large desk for a long time, and have now considered: Build the thing myself. Basically, I only need a large area.

In the hardware store there are worktops, I would like to buy a solid wood with the dimensions 200x63x2,7cm. For this I had thought of 4 steel feet. But now I think about whether it would be necessary to stabilize the table somehow because of the length, so that it does not sag or even break.

I would like to relinquish more feet in the middle, I think that a) ugly and b) I want to be able to move my legs freely under the table.

But I wanted to ask here, maybe here is a capable handyman / carpenter / … Who can tell me if this is necessary at all and what opportunities would offer to stabilize?

Incidentally, a laptop as well as several monitors, a printer and small rams (pens, punches, …) should be placed on the table, of course distributed over the entire table.

A 5th leg in the middle, so that you do not sag the plate

I have it in two variants, one with a solid beech wood worktop, 26 or 27 mm thick, resting on two cheap folding trestles. Distance of the bucks: 125 cm, on both sides of the plate is about 45 cm beyond the edition. Nothing hangs by.

Second, with 2 softwood panels from the hardware store, thickness 18 mm, 400 mm wide. I have connected it by means of a bar 30 x 40 x 1400 to one with 80 x 200 cm (glued and screwed). Also two bucks, distance about 143 cm. The bar (on the underside) thus covers 20 mm of each plate, so they do not slip against each other, and it bends even slightly.

The heaviest things (big monitor) are directly above the overlay.

And in front you could - if it weakens and sags, subvert a somewhat stronger bar for reinforcement.

63cm table depth is unfortunately not enough for multiple monitors if you not only work on the laptop.

It makes sense to have an eye distance of min. 60cm. The recommended table depth for a 27 "monitor follows from 90 to 100cm. This also makes sense for a proper armrest: https://tipps.computerbild.de/hardware/komponenten/abstand-zum-bildschirm-551759.html

Joystick or keyboard on the edge of the table is unprofessional and leads to bad posture and in the cinema you don't sit in the front row either.

A span of about 180 cm for a 27 mm hardwood tabletop, e.g. Rod glued, will not bend when the load is distributed. The following things should be noted.

The table legs should have adjustable gliders for ground leveling. Alternatively, but less elegant is the beer mat principle because it annoys when the table is not in the balance or wobble.
The table legs should have a good lateral stability and a wide mounting head (diagonal bracing).
It is worth thinking about the desired table height in connection with a good office swivel chair. Recommendation: the higher the better.
It also makes sense to plan the cable management. A wire mesh, cable clips or a cloth under the table top does a good job.
The table edge of the solid top should be slightly rounded on the user side and the surface should be dust-free and easy on the skin and easy to clean

Before the action, look around in an office furniture store and let us advise you. It's definitely worth it.

Thank you for the very detailed answer. Distance to the screen, I just measured how far my head is from the screen at my current desk (50cm deep) and come to my everyday sitting position at a distance of around 80cm. My biggest screen is around 23 inches, so I'm actually on a good way according to your article.

Thanks anyway, that made me pay more attention to what is important for a comfortable and healthy desk.

I've already noted the rest of the things, these are definitely useful tips.