Apparently you already upgraded via RPi OS. LibreELEC's 9.95.2 branch still used the older firmwares.
With the current nightlies (or the upcoming beta3), the still-not-updated RPi4B should get upgraded to 2021-03-18.
So we were both right.
Since LE is my first system on the RPi 4 it must got its firmware in the shop. 
just use /storage/.config/autostart.sh
Thank you.
It's a bit enduser unfriendly, since there is an updater menu in the settungs, but good, that this is a possible way.
Considering the low number of bootloader and USB firmware updates for the RPi4B devices (the current one is from September 2020), I'd say such a feature is a bit overkill.
Mine is from may 2021 or do I look at the wrong place?
Currently i can update the EEPROM-Bootloader and VIA USB 3.0 Firmware once on a reboot and need to reactivate each time.
I administrate the libre elec installations of family member and would need to manually search for updates and upgrade them everytime at their location.
I would like to have an option to autoupdate the stuff on every reboot instead only once.
The raspianOS does it automatically on every reboot.
And since I use the the auto updater of LE, it would be nice to upgrade the other stuff on every automatical LE reboot as well.
Everytime my Raspberry Pi 3 Model B activates his screensaver (10 Minutes timer), it changes the TV HDMI Source to himself.
It is very disturbing while watching medias on another HDMI-Device.
Did I set the wrong settings?
It should'n grab the controll, when it goes into standby.
It should only grab the controll, when it wakes up.
