Read thru the responses, this reminds me of the mainstream media and how they put out "misinformation". It's all about whatever narrative they want to present to get a desired result. Have we really gone down that rabbit hole?
If you will have the inverters powering loads 24/7, there is isn't an "idle draw", it's part of running your system on solar power. I have a baseload in my house of 150W constantly, it will require the units to be on 24/7.
I have 2 LV6548's, not installed yet but getting closer by the day when I get time to work on the project. A few things to keep in mind, if you ever plan on system expansion, go with the larger inverters. I have a SPF3000 in my truck camper, it works fine for that use, I would only use one in a house for a critical loads panel.
All of these units bond N-G under inverter power, unless you purchase the GW SPF5000 from Signature Solar. I'd steer clear of that unit anyway, plenty of choices that would be better if you want 240V split phase in a single unit like the LV6048. As for the N-G bond, really the correct place for it is at source which is the inverter. Installing a 3 pole double throw transfer switch is highly recommended, Filter Guy and myself plus others had numerous discussion about the wiring of these units that bond N-G under inverter power.
Define your needs first, what is the max draw, the usage of the inverter (home, RV, off grid, emergency power), the size of your PV array. Then search in the archives here, plenty of threads about all of these units and educate yourself on what each one is capable of. Don't be afraid to search other brands, there might be a feature or function that you might prefer, it's all about what needs and usage you define.