weird linux user…
I like to tinker with things (a bit), and do thing with my devices that make my friends confounded
no problem!
P.S. You don’t need a WiFi card to use KDE Connect. I have it set up on my desktop (Ethernet only), and it works perfectly. I think you do have to make sure that it connects through the same router that the wired connection uses.
The current Virtual Keyboard solution on KDE ( maliit ) isn’t working quite as much as i’d like. It only works on GTK apps, and only sometimes shows. When it does, it won’t relaunch after dismissal untill you kill it. Add to that it’s not as feature-dense as its windows alternatives.
I hear that they are working on their own plasma-keyboard, and I hope that will fix most of these issues, but I haven’t had the tim to update my system.
I installed power-profiles-daemon on my laptop (and configured it in the settings) a while back and noticed a bit better battery life. Maybe it could also be the kernel? I updated mine a while back and there was also an improvement.
Perhaps for the phone you could try something like KDE Connect. You have to be on the same wifi, but once connected, you can do things like remote input, sharing the clipboard, sending sms, sending files, and you can browse files from the PC.
Some things I have listed here may differ as I am on an Android
I am currently using dolphin, and I would highly recommend. I tried xfe before. It’s highly customizable, but opening files was king of annoying (you had to manually input the path of the application)
E: more information
This might be me being kind of pedantic, but this might actually be adwaita instead of LO. I’ve noticed on RNote (a GTK app that uses adwaita), that the save icon is as you described, whereas on KDE’s breeze and oxygen icon themes (and I’m sure many others), the save icon is still a floppy.