Q.Lemon tree in a pot
I have a Meyers Lemon tree in a very large pot but it is very root bound. Should I cut away the base of the roots and repot it with fresh soil or just leave it potbound?

Spring is a great time to repot-just as the tree is entering it's growing season.
Fill a new pot-1 size larger, 1/4 full with a similar potting soil.
Remove the tree from the old container and examine for roots that may be encircled around the base.
You can cut through these roots with a clean knife to ensure the plant takes up nutrients and water in the new container.
Set the tree in the new pot and adjust the soil so that the top of the root system sits 2 inches below the pot rim.
Fill in the soil around the root system and water throughly and add more soil if needed.
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm