I've made steam game lists for games I definitely want to play (library is huge, and I'm aware that most games I'll never get around to), and a separate list for games I've finished playing.
Make sure games are windowed or borderless and that you don't have an external frame cap like steam overlay.
My understanding is the tool originally was focused on upscaling, and "lossless upscaling" was the apps main feature (along with allowing you to apply other kinds of upscaling).
So the frame generation part is more accurately "the lossless upscaling app's unique frame generation", but it's shortened to just lossless frame gen even though that's not really accurate.
It depends on the game, framegen techs, and your base fps.
It can be a great way to squeeze more performance out of a game in some circumstances, but it's a big problem when games like MH:Wilds rely on it to meet an acceptable fps at all.
Different framegen techs have different requirements. Some like DLSS and the newer FSR require specific GPU hardware, some require being built into the game specifically. Lossless is great because it works on most hardware and most games.
My understanding here is that it's working as part of the Vulkan pipeline, but I don't have enough knowledge in that area to answer more accurately than that. This article discusses what the dev of lsfg-vk had to do to get lossless framegen working on Linux, and it can give some insight into how it's working.
Here's instructions on using lutris or installing directly through steam
The easiest way (imo) is probably to use Non-steam launchers
Would have never expected that, I'm glad I came back to this thread to see if you had made any progress. Searching online about that, sounds like it's actually a somewhat common issue (that I had never heard of before now). Basically the advice is to try a better quality hdmi cable, swap to 5ghz wifi (which is less likely to get interference from this than 2.4Ghz), route the hdmi cable different to have more space between it and the deck, or add ferrite cores around the ends of the hdmi cable.
That thread was mostly people saying it was too laggy over USB methods (capture card etc) or that the only solutions are windows only apps.
This video from that thread shows the capture card method:
Most of the external portable screen projects I've seen for the deck use devices that can directly receive video over usb-c, like XR glasses or portable screens. I don't know of a good way to convert video over usb-c (or hdmi from a dock) into something that your Android tablet can receive and play. There are some windows only apps that can stream video via usb to a tethered tablet, but I don't know of a linux/steamOS compatible option. If anyone does, I would love to hear it.
The easiest thing to try next would be to install Sunshine on your deck, and Moonlight on your tablet. It will still streamed over wifi, but a lot of people get better stream quality/less lag than with steam streaming.
Right, but the actual build/install instructions provided on the github probably won't work as provided because of the build tools needed and the locked file system.
I would recommend disabling wifi battery optimization. I know you can do it from settings in game mode, I'm guessing there may also be a KDE setting for it.
I know for trackpad/joystick/gyro mouse you can definitely adjust the sensitivity, but I'm not sure about adjusting sensitivity for an actual mouse (if that's what you're talking about).