Headed for Switzerland

I'm going to visit the Bodensee soon and I'm downsizing. So looking at your list:

aChanceEncounter wrote:

I know this is a first world issue but looking for input on one of these kits for 10 days in Switzerland. Everything needs to fit in my Hadley pro small bag.

I'm taking a Domke F-5XB which is comparable in size.

3. XT3 with 18-55, 55-200 (although in reviewing my library, I end up with only 5-10% of keepers with long lenses)

Then don't take it. I'm actually going to sell my 55-200 as part of my downsizing move.

6. Go with full set MF lenses Voigt 12/5.6, 21/4, 35/2.5, Hex 50/2, Rokker 90/4 (have used this before and all fits - but a bit cumbersome changing lenses that often).

I'm going this route. I currently have an X-Pro2, but it's also going to be sold and replaced by an X-E4.

Lenses: I'll probably take my Samyang 12/f2. I like the lens but find it a bit big for how specialist it is. Then again, you can take a cable car up to above 1000m, where I think it'll be nice. I also have an XF 35/f2 that will come.

Then I'm buying an XF 18/f2, a TTArtisan 25/f2 and a 7Artisans 35/f12. All of these are my search for the perfect pancake take-everywhere lens to turn that X-E4 into the ideal custom version of an X100 

I'm not taking anything longer because I have similar experiences with long lenses as you do. I don't like making photos of things that are far away. I've tried birding and wildlife and it's not for me. Otherwise I'd take a bigger camera, right?

About changing the lenses. I like working with 1 lens only in one situation all the time. Suppose we're walking around in a city - 25mm it is. We enter a bar - switch to the 18mm. Go to the beach/mountains/... - switch to the 12mm for a while, then maybe another one. So I work in bursts with one lens, then do a full mental switch to another one. It seriously limits the number of lens switches mid-work.