X-Pro3 or X-T4 as a second camera

DrivedCat wrote:

I only shoot stills. My main camera is a Nikon Z6. While I love it, I can not carry it all the time with me. Well, I can, but it is not worth it.

My second camera is an X100V with which I have a very strange relationship. Most of the photographs I take with it are not so good (comparing with the Nikon). It's not faulty technology. As I've come to realise, 35 is not the focal distance I'm that comfortable with. I know it now since yesterday I finally put a teleconverter on it, and suddenly got some very decent pictures from it. The converter is quite large though and makes the camera bulky.

For over a year I've been toying with the idea of getting a second body, and for a while was dismissing the option of X-Pro3. Mainly looking at X-T4. I can't say that X-T4 excites me, but the lens range is very appealing. Nikon Z 24-70 f/4 is a fantastic lens, but for the price of, say, 70-200 f/2.8 I can get a second body (Fuji) with a decent lens. A couple of weeks ago I realised that X-Pro3 with a couple of primes is a very compelling option. I could get a 33 or 33 WR and, say, a 50 WR.

Since I'm a bit lost, I'm asking for advice. How much will I miss IBIS on X-PRO3? Is X-T4 a better option? Are there any disadvantages I'm missing (say, I've seen someone complain about the breaking screen on X-Pro3)?

In a nutshell, X100V does not do the job as a second, daily carry camera for me. X100V + a teleconverter might do the job (focal distance), but becomes a bulky beast. Can I improve the situation with an X-Pro3? Or X-T4?

Here is an image from yesterday:

If this was going to be my one and only Fujifilm interchangeable lens body, I'm in favor of an X-T4 over X-Pro3 unless I was only doing street photographyt with a few small primes.

I like the X-T4's IBIS, larger battery, and battery grip.

I really like the hybrid view finder in the X-100 series and X-Pro series; but, larger lens tend to block too much of the optical view finder.  The X-Pro3's optical view finder magnification is different from earlier cameras and might not work for you, depending on focal lengths you like to shoot with.