hello there .. I'm regularly checking device care app, infact i have set automatic optimisation on regular basis . The fact is battery draining faster in android 10. I'm not saying its very fast. but compared to android 9 yes its making the difference
Ar12 yes U r right it started happening to me also
so i decided to get help i went to Samsung live chat they said it might be an glitch in the update and recommend me too backup all my files and reset my phone so that this issue could be solved or wait until the next security patch update arrives..
so i guess waiting for next security update would be better!