My comment was incomplete earlier and I edited it to update it later but you had already posted your comment before my edit, so posting this comment to clarify that I do occasionally indeed provide my full attention. I sometimes post a web meeting link to the Matrix/IRC channel. Anyone is welcome to drop in to the web meeting or drop out at any time. However, I have not tried the approach of offering one-on-one meeting slots via calendar booking and relying on audio/video during the meetings and that is something I am eager to try out now.