You can also change the scaling to whatever you like afterwards, but try to have an image size that's generally large, in that range, to maximize quality (small images will be blurry no matter what). 4K 16:9 resolution is 3840 x 2160 pixels, and 8K (I recommend, but download sizes will increase) resolution is 7680 x 4320 pixels. It looks much like Tayasui Sketches in places and has a similar vibe. The app itself has a reputation of being great and super simple to use.
For a long time, Sketchbook was part of the Autodesk line of products, but it’s now flying on its own. This way, the image is clear and high-quality when enlarged. This drawing app for Mac has had a storied history as well. I also recommend increasing the size of the image to at least 4K or more equivalent size (basically, a large resolution). Make it in Google Slides, then export the current slide as an image (preferably SVG because it's scalable and won't go blurry when enlarged), then insert that as an image on your document.Make a separate drawing in some folder for your document, then download the drawing as an image (preferably SVG because it's scalable and won't go blurry when enlarged), then insert that as an image on your document or.Make a separate drawing in some folder for your document, then insert them through the Drive.
