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by NeoTar 623 days ago
Using an apostrophe to mark a plural is often called a grocer’s apostrophe - https://www.grammar-monster.com/punctuation/using_apostrophe...

In English I’m actually ok with it for single letters or abbreviations- “your writing uses a lot of x’s and y’s”, “Can you pack away the CD’s and DVD’s”, but this is a personal quirk and definitely non-standard usage.