If you have a sizeable collection of 4x5 negatives from which you need to squeeze the last few % of resolution and tonality, then you may need to spend the time and money on a drum scanner.
For less money and effort, consider moving up from the very bottom of LF to 5x7 or larger. 5x7 give you an immediate 20% increase in image size along the shorter dimension and 40% along the longer dimension. Most of that translates into higher resolution. My 1930's wooden 5x7 Kodak camera is modestly priced but fitted with a modern lens does OK.
See
this 5x7 sample image, dry-scanned with a consumer grade Epson scanner.
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