I had some issues with this when it first came out, but I had previously capped the max charge through power tools. I figured the issues might have been from the two settings interfering with each other.

The indicator being stuck is a recently fixed issue:

Fixed a case where the battery level indicator could become stuck

https://store.steampowered.com/news/app/1675200?emclan=103582791470414830&emgid=529850584204838038

I'm on the current beta stable release, and it's working fine for me.

Be aware that if you're already charged to 100%, and you play primarily plugged in and/or docked, it's going to take a while to work down to the level you set it at.

I do, and I set mine at 85%... it probably took 20 to 25 hours to go from 100% -> 85%. Now it sits consistently between 83% to 85% while plugged in.

Pretty sure it's doing that slow drain on purpose because it's better for long term battery health.

EDIT: Forgot to mention I use an OLED Deck. I also had an LCD Deck, but that was before the arrival of the charge limiting.

My Q1 LCD is limited to 90%, never had an issue with this feature.

I haven't had any issues with my OLED deck. Every time I take it off the charger it is at 79%.

I've also noticed this, I try to keep mine at 60% due to bad battery health and keeping it basically docked 95% of the time. Not once have I seen it actually stick to 60%.

I still have the original LCD Q4 version.

I don't have a steam deck, yet, but my pixel also has this battery feature.

There's some info in the settings, about the need to let the battery go to full 100% every now and then.

It shouldn't happen that often though.

Once i had it go to 100% three times in a row, but other than that it's always 80% and sometimes, often the first load after a reboot, it goes to 100%.

There is a bugreport about this somewhere, I think the SteamOS github. Basically the charge limit doesn't work in standby. Maybe it's a hardware limitation of the LCD models. I have that as well.