Apple has been reported as taking 53% of the TSMC 5nm line this year for producing next falls iPhone and other products. Apple is well known for using TSMC and helping keep them stay healthy growing fabrication company.
Apple is a larger customer than AMD or NVIDIA which is why Samsung has become availale for contract production. So far NVIDIA has made RTX Ampere with Samsung but yields have been lower than hoped for. Speculation that AMD may also use Samsung for manufacturing are based on TSMC saturation.
Shortgames of video cards and other hardware are all over the media. Video cards are important for gaming which is a focus here. Any disruption is cause for concern for gaming.
Apple sells over 200 phones for every elite video card sold. The high end of the video card market is not that large. The real action is at down under $200 where sales numbers are much larger.