We did LVT throughout the house when we built and are so glad we did. Exceptions are, bedrooms are carpeted, bathrooms and mudroom are tile. Some of it is wood look and some is stone look. 10 yrs in and it still looks as good as the day we installed it. Easy to clean and no transitions to worry about. We used Amtico.

I put a wood look Coretec LVP throughout most of my first floor, in our beach house.

You will get some of the cognoscenti who sniff in derision about LVP - but I love the stuff. I have dogs and they can't make a dent in it.

My main home has wood floors throughout, and they currently look like I ran a wood chipper over them due to maniac dogs running and having way too much fun on them. (Yes, I've trimmed their nails, in case anyone intends to suggest I try that. I use a dremel once a week, their nails are incredibly short...they're just young exuberant dogs who like to run and play, and they're scratching the heck out of my "real" wood floors in the process.)

In theory I would prefer "real" wood, but in my life real wood causes me more trouble than it's worth. YMMV. :)

Here's a good link about the pro's and con's of hardwood floors vs engineered floors. There's also laminate floors which are good too.

Engineered sounds like a good fit for you

This is our tenth year of engineered flooring, made with the maximum of layers, and there isn't one scratch from the two horses inside, or the previous 4 dogs, two large, two small. One scratch made by a human.

Our floors were glued on top of concrete, and there are no seams for food to get stuck in.

Did I tell you about the time the floor guys had a large swath of glue in the living room right before they laid some wood and my dog accidentally escaped from the bedroom and ran to the living room as fast as she could and slid through the glue?

A lot of beach houses in my area use wood-look tile with minimal grout lines. The floors stand up well to sandy, wet feet and claws. They might be too cold, though, for your area. I guess you could install underfloor heating, but $$$.

We do have underfloor radiant water heat throughout the first floor! It’s lovely!

why not do site finished wood and skip the cracks? My hardwoods are so easy to clean.

My hardwoods have been finished on site a few times but it could be different getting wood in that is supposed to be site finished I guess?

We have white oak 5“ site finished floors throughout our home (except for the tile baths and laundry)...there are no cracks between the planks. It is a completely smooth surface. I’ve not found it to be a fussy floor to maintain at all. I dry Swiffer and about 2x a week I’ll run a wet Swiffer over the areas where there could be dirt. 🤷‍♀️ We have 2 medium dogs...they haven’t damaged it. I like the way it looks aNd feels. It’s not cold like the tile in the baths (although if we’d thought to heat the bathroom tile they wouldn’t be cold!)

I cannot imagine that taking installed wood flooring from one floor and installing it on another floor would be a cost worthy exercise, especially when you would then need a new flooring anyway.

There was another discussion of flooring not long ago. The Coretec and another brand were mentioned by several people and I added Flooret as a suggestion for LVP flooring. It seems like one of those or possibly refinishing your existing flooring would make a lot more sense. Are the crack you don't like a bevelled edge on the boards or gaps left by shrinkage -- knowing you have a lot colder weather than I do.