Correção de texto: I thank you for all

Find attached the correction.
If you have any questions, feel free to ask.
Enjoy your studies:
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I'm very happy because you guys helped me a lot. You people lost a little time only to help me, whom you guys don't know, with those texts which were corrected by you. I know, unfortunately, it still isn't enough, but I learned a lot already. Thank you very much for your patience. I'll send more texts for you guys if I'm not boring you. Thanks a lot!
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NOTES:

(1) You should use "whom" because the person who is the object of the phrase "you guys don't know" is the one who receives the action (the fact of being unknown). The correct sentence would be "You people lost a little time only to help me, whom you guys don't know." The main difference between "who" and "whom" is that "who" is the subject (the one who performs the action) and "whom" is the object (the one who receives the action).

Who is used when the pronoun is the subject of the sentence:

Ex.: The person who helped me is here.
>> A pessoa que me ajudou está aqui.

In the sentence above, who is the subject of the verb helped.

Whom is used when the pronoun is the object of the sentence:

Ex.: The person whom I helped is here.
>> A pessoa a quem eu ajudei está aqui.

In the sentence above, whom is the object of helped.
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Tip: If you can replace the pronoun with him or her, you must use whom. If you can replace it with he or she, use who.

Let's pay closely attention to the sentence You people lost a little time only to help me, whom you guys don't know. We could have replace the second part for the clause You guys don't know me. Since me is the object, whom is correct.

Now, if the sentence were about who performed the action (for example, I helped the people you guys don't know), then who would be correct.
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I'd like to remember you about the preposition rule. If the sentence has a preposition before the pronoun, the use of whom is pretty much mandatory.

Ex.: This is the girl with whom I went to the party.
>> Essa é a garota com quem eu fui à festa.

In the text above, we used whom after the preposition with.
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REFERENCES:

(1) SWAN, Michael. Practical English Usage. 3rd ed. Oxford: Oxford University Press, 2005.
(2) TRESURE, Stephen G. Who or Whom? - The correct use of 'who' and 'whom' and other relative pronouns. 2022.
(3) BACHIESICHANG, King Sulleyman D. Dictionary of English errors. Page 426. Xiblis UK Publisher, 2013.
(4) LESTER, Mark. McGraw-Hill education handbook of English grammar and usage. McGraw Hill LLC, 2018.