Upgrading Lighting in My Rental: Advice on Options?

I’m renting a house (at least until next fall, depending on when owners decide to sell). The lighting situation kinda sucks: outdated (mostly crystal) overhead fixtures that light the spaces poorly.

I want to swap them out and plan to offer the owners: if they cover the new fixture costs, I’ll handle (or pay for) installation. That way, they get an upgrade, and I get functional lighting while here.

So I'm looking for somewhat minimalistic, affordable, but tasteful options (I enjoy minimalism, and less stick-shock to owners + easier on me if I end up paying for it). Functionality is very important – I want a bright kitchen for cooking and well-lit rooms that don't feel dim/depressing.

I’m leaning toward medium-large flush-mount LED lights (w/color temperature adjustment).
Please see these example photos to illustrate different styles/frames. So perhaps:

• the 21" over kitchen counter/possibly dining area
• the 18-19" ones in the other rooms (Office, Fireplace room, Large room)

Perhaps find versions of those sizes, but w/more decorative frames like the 15" ones in photos link.

Would love some advice or any fixture recommendations. Thanks!

EDIT: To avoid confusion, I’m not talking about the small recessed disc lights that you'd put in place of cans – I mean the larger surface-mounted ceiling fixtures (flush mounts, 15–21″).

Kitchen + Dining area (don't mind mess, still settling in)

Kitchen + Dining area 0.5x zoom

Over-counter fixture doesn't even work

https://preview.redd.it/b94r8svxonpf1.jpg?width=1536&format=pjpg&auto=webp&s=dececa9ba082337bf47d739102c8f6d171fc565f

Office (still setting up)

Office 0.5x zoom

Fireplace + most likely TV room

Fireplace + most likely TV room 0.5x zoom

Large extra living room 0.5x zoom

Large extra living room from opposite side