This page on Natural Pigments website pretty much covers it. They say you can use them “sparingly” (sort of vague) but I choose to leave them out totally.

https://www.naturalpigments.com/artist-materials/cat/medium-supplies-art/post/resin-mediums-damar-maroger/
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This is found near the end of the article.

What is the best practice for oil painting?
• Avoid use of resins, waxes and non-drying oils in paint (if used, use sparingly in small passages of the painting)
• Avoid use of pigments that inhibit drying (carbon blacks)
• Avoid medium rich layers in the painting
• Avoid using materials in paint or while painting that may deposit on the paint surface and remain behind, e.g. non-evaporating solvents, surfactants, plasticizers, etc.
• Apply paint with a sufficient amount of binder (oil) to envelope the solid particles in paint, e.g. pigments and extender pigments or fillers, to approximately achieve its critical pigment volume concentration (CPVC) and not in excess
• Use basic lead carbonate (lead white) as a replacement for titanium white (lead white provides oil paint with its greatest flexibility and resistance to water)
• Apply paint in a direct, solid manner, which is always better than multiple layers of variable binder-to-pigment proportions (the essence of the fat-over-lean principle).