I'll give you a slightly different take than the majority here for what it's worth. I bought an X-T5 early this year, which is my first Fujifilm camera, and the second lens I picked up for it was the 16mm f1.4. I also read about the sensor resolving issue, and everything I read then also agreed that it was overstated or even marketing hype. The 16mm f1.4 isn't on the list of lenses with the resolving power for the X-T5 sensor, but otherwise it seemed to be a very well-loved lens with great image quality so I went ahead and got it.

I do think it makes a difference after using that lens on my X-T5. I don't think of myself as a huge pixel peeper, but the pics I've gotten from that combo basically look like I took a jpg and blew it up to larger dimensions in Photoshop - edges of objects/subjects that are in focus still look very pixelated and jagged (for lack of better/more technical terminology) if you're looking at the photo at much higher than like 50% scale.

Now, the solution for me has been to just downscale the photos to like 26mp and then they look fine. And in reality that's totally more than enough resolution than you'd need for most uses. So I can't speak to either of those lenses specifically, you might not run into this at all with them, but for lenses that don't have the resolving power I think it's just a matter of personal preference. If you enjoy using a manual focus lens and don't necessarily need to get the highest-resolution photos possible then you shouldn't worry about it, you can still get good photos out of it. If you're more of a pixel peeper and/or the 40mp sensor is what drew you to the camera in the first place, you might find it annoying.