Selecting my default Lens on my Canon R10.

I am new to photography. I bought the Canon R10 with the RF-S 18-150mm kit lens last month, and decided to buy the RF 24mm f/1.8 as my portrait lens last week.

I need help on deciding which one should be my default lens to lessen lens changes on a daily or on tour basis.

I love taking landscape photos and zooming unto the right scene too.