depends what games you play. It's standard for me to get 10% RTP when playing DHV from 100 spins .... but then RTP jumps to 1,000%+ when the bonus finally hits
If you are playing some shitty netents or low volatility games and you get 10% RTP even over 100 spins, run very far away.
To answer your question, yes, on high volatility slots it is fairly normal to get 10% RTP on 100 spins, unfortunately. On low volatility slots it's pretty rare. You can play Book/Merkurs and have 100 spins without a goddam win, as I have done. Or play reel king and gamble the ladder for another 0% RTP. Plenty of video evidence of white rabbit feature buys (100x) paying stupidly low amounts too. Love the volatility though because all those shit bonuses will eventually yield a monster on BTG/high volatility slots.