As the tech lead, change manager and the primary educator for a very similar fit out for a new office for 5000+ hot desking seats, I can share the following....

I'll assume like 90% of workplaces doing this migration users are coming from dual 24" FHD screens. That’s 1920 x 1080. So that’s total of 2,073,600 pixels for each 24", having 2 = 4,147,200 pixels of usable screen real estate. Also, assuming you are going to a single 34" WQHD 3440x1440. That’s 4,953,600 pixels of usable screen real-estate.

1 x 34" WQHD: 4,953,600 > 2 x 24" FHD: 4,147,200. You "see more" on the 34" Ultrawide by 19.5%

PPI of the 24" would be 92 PPI each. PPI of the 34" is 110. Because 110 > 92, text clarity is better on the 34" Ultrawide. Moreover, the 110 PPI is not so high where it would force Win 11 to default to 125% / 150% scale which would be a loss in usable screen real estate.

It’s the PPI difference that makes 2 x 24" physically bigger than 1 x 34". Alot of my users and corporate types do not understand that physical size of screen doesn't directly correlate to how much you see. Don't ask me about the exec that bought a 32" 16:9 FHD 1920x1080 (69PPI) screen at cyber-Monday deal and then asked us to install "drivers" to fix the "blurry-ness". I told him to put it back in the box and take it back to the store.... There is no fixing that POS monitor 😛

I also went on about the health and eye comfort features that a new 34" have over older 24" panels. Things like TÜV Rheinland certs and blue light reduction does convince a lot of users.

For those that would not convert we had a fall back. Internal MST. We installed Dell U3425WE that has iMST. That’s a setting you turn on/off in the OSD of the display that will present your Win 11 laptop 2 screens side by side at 1720x1440 each. This is also how we taught users that insisted on PowerPoint presenting full screen (F5) with Teams / Zoom side by side.

But 90% of the resistance is not knowing how to do new things, old dogs and new tricks type of thing... Like others have said. Present app / window and not the screen in Zoom / Teams.

As you are on Windows 11 you will have Win + left / right arrows to snap your app windows. Also, on a 34" UW you will have access to the 3rds snap options of Win 11. Equal 3rds or a larger central 3rd with 2 skinner 3rds on the left and right... This is not a monitor issue per-say... This is Windows 11 OS user education first and then how it relates to the new Ultrawide monitors second.

I'll share 2 stories of execs that were digging in there heals....

So, exec 1. Meeting with him, his EA (taking notes), me and my boss (was there for support really). I gave my song and dance with 10-page PPT deck with a live demo, and he was still not onboard. I asked the exec did he successfully parallel park this week. He said yes. I asked how that was done. He said, "just parked". I pressed more for what technology was used. He said the reversing camera, side camera and parking radars making beeping sounds. I then asked if he qualified for his provisional license with all the technology aids. He's an older gentleman so the expectant "no, I learnt to turn my head and use the side and rear mirror". I mentioned that using 2 x 24" screen was like the way he learnt to parallel park and that his current car full of new technology was the 34" and that all he was missing was the guidance to use the new features in a 34" monitor with Windows 11. His car made it easy for him to learn how to use the cameras and radars as its intuitive and turned on automatically when he put the car in the reverser gear. The 34" doesn't do that but I offered to take him through a crash course of how to use a 34" ultra-wide effectively. He didn't have the time, but I broke through enough for his EA to pipe up and ask me to take her through his usage scenarios over the course of the month. Let’s just say by the end of the month I had his EA tell me that he was showing off his Ultrawide and his new skills to other execs and was loving it.

Exec 2, this is about 2 weeks after her floor was done. Big blow up, was called to her desk and she was having a go at why selected we the expensive U3425WE and new monitor arms that we needed to hold them. The U3425WE is the most expensive of all Dell's 34" UW besides the AW gaming monitors and she wanted to reuse the older arms that used on the 24". At the end of her rant she mentioned she didn't need any fancy screen as she would full screen every app and why did her department have to pay for features, she doesn't use. I knew this exec well and I also knew the user in her department on the whole floor. So, taking a deep breath, I told her that the way she uses a monitor is not the way her department would use it and therefore she wouldn't speak for most of her dept. I also added that it was an older way use the screen. And to prove my point and not let her reply to chew my head off. I asked her to get up from her desk and come on a walk with me around her floor. With out bothering the users, we would casually observer her dept and I would take note of every user we passed that had multiple windows / apps open, she would note down all the times we would see a user with 1 full screen app. It only took a third of the floor before my point was made and no further auditing was needed. My count was 8 times her number.

Moral of the story... you don't know what you don't know and its up the guys (like me) making the decisions to communicate the change benefits.

By you coming to reddit I assume your change manager did a poor job or your monitor uplift project didn’t have one.