Is a high-yield savings account better than leaving money in chequing?

Generally, yes: if the money is not needed for everyday spending, a high-yield savings account is usually better than leaving it in chequing.

Chequing accounts are designed for day-to-day use, so they usually offer the easiest access for bill payments, debit card purchases, and other regular transactions. A high-yield savings account is typically better for money you want to keep accessible but not spend immediately, since it often pays more interest than a standard chequing account.

A practical approach is to keep enough in chequing for your normal bills and spending, plus a small buffer, and move the rest into savings.

One caveat: savings accounts can have withdrawal or transfer limits, and the exact rules vary by bank and country. Deposit insurance limits also vary by jurisdiction, so it is worth checking the official details for your institution.