Can someone give me a quick guide

[Oli9211]

I've never owned a display capable of more than 60fps before. I know little bits about this topic and LCD's have always bothered me but I'd like to not have to spend an evening researching and tweaking when my TV arrives so a basic guide for my setup would be great.

I use my pc in a living room set up. It's just how it has to work where I live. I found a great deal on an LG C1 oled that's 120hz and supports bfi at that rate. The idea of bfi really appeals to me and newer models only do bfi at 60hz. I know it's an old TV now but I got it so cheap I thought might as well try it.

My current pc runs all the games I like at 4k60 with tweaked settings but when the TV arrives I'd like to see how I get on running games at at least 60fps as a base and use frame gen (lossless scaling) or drop settings for 120fps and turn on bfi.

Assume I know very little, types of questions I have though are:

Should I cap my base frame rate at exactly 60 or 120 for smoothness or just go unlocked for the best effect? Is an average of say 70fps on a 120hz display worse or better than exactly half the monitors refresh rate and does vrr make a difference?

How would something like lossless scaling framegen interact with this?

What should I do with the settings on the amd control panel?

Does vrr or free sync change anything when using bfi?

Etc stuff like that.

Thanks for any help offered