Welcome! I’ve been using the offical SoulseekQT client pretty much forever, occasionally (and always very briefly) giving Nicotine+ a spin. I use Linux, but I actually use the Windows client with Wine because the native Linux client is somewhat less than optimized, to be very diplomatic. I also changed the UI quite a bit to match pretty closely to my system. As of today, I’m also trying out slskd, and liking it a lot.