I've somehow settled on a working environment where I use interchangeably my #hajkey and #mastodon accounts in my PC.
to follow a long thread I prefer Masto.
to reply on that thread with more than 500 chars, I continue from Hajkey
to find content I use Hajkey's antennas.
to find people, definitely Hajkey. I'm much faster being over to hover over a name to see all the details before I decide to follow or not.
to keep up with what's going on with the people I follow: Mastodon. Home tab is easier on Masto.