Here is what I have: an excel table that looks like this:

I then added a gallery using this excel sheet as the data source, added 4 buttons with the OnSelect of the buttons as:
Button Skill1: Set(filterBy, "Skill1")
Button Skill2: Set(filterBy, "Skill2")
Button Skill3: Set(filterBy, "Skill3")
All: Set(filterBy, "")
I set the Items property of the gallery to:
Filter(
Table1,
Switch(
filterBy,
"Skill1",
Skill1 >= 3,
"Skill2",
Skill2 >= 3,
"Skill3",
Skill3 >= 3,
"",
true
)
)
This is how the gallery behaves:

Let me know in case of any questions.
---
If you like this reply, please give kudos. And if this solves your problem, please accept this reply as the solution.
Thanks!
Hardit Bhatia
https://thepoweraddict.com