What type of tub?

Assuming alcove, generally, cast iron and steel tubs are the most durable. Cast iron feels the most solid under-foot, but is heavy and can be difficult to get upstairs. Cast iron also has a large thermal mass, so it "absorbs" a lot of the heat from the bath water.

Steel tubs are lighter - but go with a higher quality or they will flex under-foot. Also be sure to support them properly per manufacturer's instructions. You don't want them feeling flimsy and moving around when you stand in them.

Tubs are something you don't want to leak and are a bear to replace (tile work - floors and walls).

I don't use acrylic tubs.

Thanks for your response.

Yes- alcove. https://www.homedepot.com/p/Delta-Classic-400-60-in-Left-Hand-Drain-Rectangular-Alcove-Bathtub-in-High-Gloss-White-40034L/204342306

A lot of the reviews I’m reading for steel and cast iron show rusting issues and chipping concerns which makes me leery of getting one.