If you’re trying to demonstrate real world programming skills then selecting and using an appropriate library is the best move (unless this is an unlikely case where there is some really compelling reason why a custom implementation would be preferable).
But if you want to make your own hash table for funsies or for educational purposes or whatever, you could add a note or comment stating that, if you’re concerned that prospective employers might get the impression that you will write everything from scratch even when it’s a bad idea.
The claims I’ve seen are that search results are censored. Like if you search for specific phrases like “Trump fraud” you will get back videos in every country except the US (unless you use a VPN). I haven’t tested this yet, but I have seen videos on TT where liberals and leftists are complaining about it and about the all the Trump dickriding around the ban. The people in my feed are now very distrustful of the app and are looking for alternatives.