What is Relevant benchmark values for microSDcard performance?

I found benchmarks of micro SD card in various websites. For reading those values and deciding and understanding and clarifying which one is relevant for adoptable/ swapping. I want to know what speed value is relevant for Internal/External storage

for **system applications booting** of android and basic applications like chrome YouTube Facebook WhatsApp and other apps functioning **NOT FOR GAMES OR VIDEOS**

Online Websites and Andro benchmark app and gives values of...

What is Relevant benchmark values for microSDcard performance?

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