Bags
Like many photographers I seek the Holy Grail of camera bags and have bought, and then sold, more than I care to remember.
Currently I use three bags depending on the circumstances and what I intend to use.
The biggest is a Mindshift Backlight 18 litre backpack. A great bag. Big enough for both my Leica Q2, as well as the OM-5 and two lenses. Extremely comfortable to wear with space for extras.
If I am only taking the Leica I use a Wandrd Rogue 6 litre sling bag. Another great bag - not too big and not too small, and very comfortable to wear.
Finally if I am using the OM-5 I use a VSGO 3 litre sling bag. Just big enough - literally “just” with space for a few extras. Very comfortable.
Would highly recommend any of these all of which are also available in other sizes.