I recently went through two interview loops at big tech companies and the DSA questions are not very hard. The typical question starts super easy and then layer

I recently went through two interview loops at big tech companies and the DSA questions are not very hard. The typical question starts super easy and then layers on more complexity as time and skill allows. If you are nervous about interviewing because of that, just try a few "easy" leetcode questions or the first ~5 days of advent of code, it really is about that level. Don't be intimidated, you do NOT have to be perfect to get an offer. If you know what a priority queue/heap is you will be fine. Yes practice, but don't slack on preparing for the 1-2 system design interviews and 1-2 behavioral interviews (for senior candidates). System design especially I personally think is way harder because it's (typically) candidate driven and there's no fixed finish line, just tradeoffs and more tradeoffs.