I'd advise binning those generic plugs and buying the appropriate sized Fischer duoplugs but it's your tv
This, the duo plugs are now my go-to. they work well in masonry as well as in insulated plasterboard with the appropriate amount of weight per fixing adjusted for what you are drilling into.
@Mr_Smyth started
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I'd advise binning those generic plugs and buying the appropriate sized Fischer duoplugs but it's your tv