Hybrid Battery module failures

Well... A charge and balance of pack after replacing modules can make a big difference... But each rebuild of modules replaced DIY style lasts a shorter period of time and it seems like time for you to move on.

The advantage with GreenBean and similar companies is they handle the install/swap and warranty stuff can sometime be to your advantage. Another option is Professor Joe sells rebuilt packs from Gen 4 Prius (2016-2022) and those are as close to brand new as you can get for OEM because brand new OEM prices have nearlly doubled: Prius | 2nd Life Battery

Also check the link in my signature about Sodium-Ion, which I think is your best option.

 

If you plan to continue driving this car, think carefully about the amounts and reasonable investments in repairs.
There may be a small investment associated with the purchase of one or two pairs of modules for a year. Then the problems with the battery will return. The new and old modules cannot work the same. Put an old nag and a young frisky horse in the same harness, make them run fast and soon one of them will die.
Evaluate more expensive methods yourself.

Food for thought.
The original high-voltage Toyota battery has a warranty for 8-10 years, for a mileage of up to 150,000 miles. And it works for the entire warranty period and much more.
The cost from the manufacturer Toyota of a new battery kit consisting of 28 modules for replacement, which will allow you to drive at least another 150,000 miles, can cost from $ 3,000 to $ 4,000.
You can save some of this money or even half of the cost of a new original battery if you buy reconditioned batteries from a private company or non-standard "ersatz-replacement" batteries with different battery chemistry, but no one will give you a guarantee that in a year or two, after ten to twenty thousand miles, you will not have another problem with repairing such a battery. An extended warranty will cost even more than original batteries. Additional expenses may be required for replacement, delivery, testing and adjustment of non-OEM batteries. You can also be denied warranty under any far-fetched pretext. There are several topics on the Prius chat website where hybrid owners deceived in their hopes later faced a refusal to replace batteries and returned to the decision to buy and install a new original set.

The choice is always yours.

My Gen2 has original batteries installed from the factory, in a short period they will be 20 years old. And when they fail, I will replace them with original Toyota batteries of recent years of production.