This is all not accurate. 

In odoo17 the only thing you need to do is call the method and then commit.

for record in env['your.model'].search([]):
	​record._your_compute_method()
	​# you can also commit after each commit in case you have concurrency errors that are difficult to track down
env.cr.commit() 

The following code works in v16:

model = env['your.model']
env.add_to_compute(model._fields['your_fields_to_recompute'], model.search([]))
model.recompute()

The following for v17:

model = env['your.model']
env.add_to_compute(model._fields['your_fields_to_recompute'], model.search([]))
model._recompute_recordset()

Hi,

If the dependencies are properly set for the stored computed field, the compute logic will get retrigerred whenever there is a change in the dependency.

After adding your new logic, if the re-computation is not properly working, make sure no dependencies are missed. If you are sure the dependencies are correctly given, then please update the question with the relevant codes.

Thanks