Things TODO after installation – settings, apps etc.

So you've just successfully installed Lineage OS on your phone, in this case Xperia XA2. I assume you have already went through the initial couple of screens and set basic things like Wi-Fi, unlock password, etc. Now you are staring at a clean Lineage OS, what to do next? I decided to write down some of the things that I do and you might want to do too. I say might because not everyone has the same priorities when using their mobile device, so take everything as you wish.