Google's keyboard is weird with this, it doesn't know what I'm trying to spell whenever it's a word I'm not as familiar with. I end up looking up the word old school and then typing it in
When I run into this on my iPhone, I just say the word with dictation and it usually spells it right for me. The autocorrect has gotten worse but the dictation has remained quite good.
I have a personal rule that I observe spelling errors, but I try to correct them myself to learn the correct spelling. My iPhone has been failing hard on this to the point where I do a web search to get the right spelling. Try rutabaga. My phone didn’t help me at all.