Pictures? What is your budget? DIY or hiring out?

Yes, I did mean to include a picture of this tub. I would need to hire out. The budget is something need to save up for at this time, but it needs to be reasonable. If it was a full remodel for something like $20,000 or less, I’d save for that. If they’re honestly charging $45k, then a full remodel isn’t likely, and my budget will be much smaller for just refreshing things. And when I do a Google search for small bathroom remodel cost, I’m seeing coats up to $15k, no where near what they were telling me.

Is that a pink tub? It is hard to tell from the pictures but if it is a pink tub and pale pink tiles, you could have a fabulous bath.

Even if it isn't pink but is beige there are certainly relatively inexpensive cosmetic stuff to do that would make your bath more attractive. I am assuming that everything is functional.

From the small picture you have posted, the floors are terrible and fight with the tub and tiles. The color of the walls is also a bit sad. I don't know if you can remoove the tub enclosure without harming the surface of the tub so that might open a can of worms.

What is the vanity like? The mirrors and counter? Those are also items that can be updated relatively inexpensively.

Whether you need a GC really depends on the scope of the project. If you are just doing minor cosmetic stuff - i.e. replacing the floors, counters, etc. most people do it as discrete projects because they don't require the kind of coordination that a complete bathroom remodel does where a GC is critical unless you have the time, expertise and connections to act as your own GC and take ownership of all of the inevitable glitches.

The tub is beige with peach tiles. The walls were painted peach because it made the color of the tub tolerable, less puke brown color. The tub is a porcelain coated cast iron tub, and removing it requires the walls to be torn out. There are lots of updates I plan to do with the bathroom, but it’s really the tub situation I need to resolve first. The others aren’t a big deal.

One of the Pros on Houzz has been sharing this free report which may give you a better general idea of current pricing for your area

https://www.remodeling.hw.net/cost-vs-value/2021/

Also, you may want to add some more photos and/or list the measurements of the space in order to receive some helpful suggestions.

I think I provided enough photos and information to focus on my specific questions. Also, I already received pricing from contractors in my area.