The problem that there is too much noise in the top transactions i looks like there are accounts that are just doing transactions or because they are part of a scam group or just exchange accounts. If you see you can add those account back in the ranking.
About the L2, I have a dashboard to search by user including L1 and L2, I use that a lot while doing investigations for abuse searching since many multi account users use that but for now it isn't public.