@domubpkm Thanks! I did not manage to install ut tweak tool directly on phone either with click or pkcon.
but manage to install it using clickable from laptop using
clickable install --skip-uninstall
usb-tethering is now working when connected to laptop, with good speed, response time seemed a bit slower than usual but up and down speed better than my s10e (just tried a few times, could be many reasons I guess).
to use UT usb tethering with openwrt I had to use this driver:
opkg install kmod-usb-net-cdc-ncm
wiile my android required this:
opkg install kmod-usb-net-rndis
thought this could be good user for my s10e later were audio is not working anyway