Intended for what??

If you are thinking more conceptually in terms of what makes for a sharp image, consider a couple of other ideas. When focussing with manual lenses on your D850 focus peaking is roughly as accurate as your in focus dot. As long as you are on tripod and being a tad bit more contemplative try live view focus magnified instead. That will let you really nail it.

Given your fairly sophisticated gear list, you really ought to have some form of remote/cable release rather than using the self timer. I just bought a used MC-30 for $10. Lots of options here.

Instead of exposure delay mode, use that simple remote release in conjunction with mirror lock up & electronic front curtain shutter to minimize vibrations. (Note, this has some limitations. ie: no faster than 1/2000 sec and watch out for moving subjects where you might get some rolling shutter effect).

As long as you are on the tripod, asset more control and shoot manually instead of aperture priority.

If you tell us about your intentions, we can narrow down the advice and get more specific.