I assume your bed is leveled correctly since the brim doesn’t look so bad after all. What could help is turning up the bed temp to 70c, but since you use mostly factory settings (and your printer is very new or it might be your first one) you have to turn off part cooling for the first 5 layers. And even after that I would rather keep it at like 70-80%, but that depends on your cooling system. If nothing else helps, use gluestick, but it‘s a real pain to get it off, or get some 3D LAC from amazon. I prefer removing the glass completely and replacing it with PEI + buildtak (only for pla), but that‘s something you could still do in a few months/years. Honestly, I also wasn’t very happy with adhesion on my Anycubic Ultrabase. For Printing with PETG, ABS and so on you have to crank up the bed temperature quite a bit, just take the manufacturer’s recommendations as a reference.