I used to care a lot about this kind of things about two years ago when I switched from mac to linux. But to be honest, you just kind of get used to it after a while and its not really that much of a deal breaker anymore. I spend most of my time in terminals, and I use i3wm so most of my workflow doesnt involve using the touchpad at all. The only use case i have for it is when using chrome, but even so theres vimium and similar things to help you navigate around without leaving your keyboard.
Same. Maybe it's just my specific track pad (Precision 5520), but libinput works great for me, with really good palm rejection. I never really used the other fancy trackpad features so I got over it pretty quick.
Having said that, before libinput I was ready to return my laptop, because the palm rejection was so horrendous with synaptics.
I relate to this comment. I've been using an old HP 8460p for the past few years, and almost always prefer to use the keyboard. Even without i3 there's things like tmux that make it much easier.