What does this do exactly in the OSBot settings? If I want to bot for 120 minutes, break for 240 minutes, does the randomize tick box just vary those parameters i set slightly so that it's not exactly the same each time? Thanks in advance. 

yes.

You can open the logger when you start a script and it will say:

[Break Manager] After botting for x minute(s), you will break for y minute(s).

And those values will be slightly different every time if you randomize the breaks

Break randomize doesn't work and hasn't worked since like 2017

Breaks are randomised by default. Both the break duration and break interval vary by +-10% if i remember correctly.

-Apa

I would actually love it if you could have multiple break handlers for one botting session. Would seem more human-like imo whenever I’m playing legit, If it’s a weekend I’ll probably play like 4 hours then go out for 1-6 hoursthen do 2 hours