Ugh I'm liking the Galaxy Fold more and more but I'm still unsure and the return window is getting close. I've more or less overcome the weight issue (not solved it, just work around it. I now never really hold my phone at or above eye level, but if I do it has to be resting on something. Most of the time I now just hold it at waist level with no issues). My main issue now is just the size of the two screens. There are a lot of things that just need a screen wider than the folded screen but smaller than the unfolded screen. There are workarounds like forcing an aspect ratio in 9:16 with letterboxing but then you're using a way-too-big phone with no benefit.
I probably split my time 25/75 across folded/unfolded.
If the folded screen was a typical ~9:16 screen I would definitely keep this. If it was also significantly lighter and on par with other phone weights then I'd actively encourage it.