I specifically use the 70 dollar Medibang Paint for Steam so I can log my hours and use the extra perks, along with the free updates. I have used medibang for years, so it makes sense that I would buy it to support the artists.
For my lineart, I use the gpen and mapping pen. Shading is done either by the oil pastel, crayon, or watercolor brushes. I tend to also do my shading on clipping layers with multiply or add overimposed to allow the colors below to come through, which makes it more realistic imo. I highly reccomend Medibang as an alternative to Clip Studio Paint and Sai.
I keep ALL of my art logged in a drive, which is listed below. if for any reason you want to use my art or are looking for commissions, they are sorted by set of years!