Should I ignore it as an irritation or are there other checks I should do?.
Good morning, welcome. Don't ignore it - follow the steps here on all your email addresses and run malware scans on all your devices. Use a NEW password, don't recycle anything used before or elsewhere. You'll get through this! Let us know if you need assistance.
I have also received an email requesting I transfer bitcoin or compromising information will be released. ⋮
It is a scam. The only information these miscreants have is the data quoted (usual an old password) and it is used to validate the blackmail information which they do not have. Ignore it or if still concerned contact ActionFraud.