Why isn't my table auto-analyzed/vacuumed?

Hello list,

I have a table that is constantly growing, and it's not being 
vacuumed/analyzed. I think my problem is rather common, but how to even 
debug it if "nothing works"?

I've already set log_autovacuum_min_duration = 0 but the table is never 
mentioned in my logs, grep'ing for "vacuum".

I have run ANALYZE manually once but nothing automatic.
Here is more info:

> SELECT * FROM pg_stat_user_tables WHERE relname = 
'test_runs_summarized_per_function' \gx
-[ RECORD 1 ]-------+----------------------------------
relid               | 780653
schemaname          | public
relname             | test_runs_summarized_per_function
seq_scan            | 32
last_seq_scan       | 2025-10-19 10:31:08.289922+00
seq_tup_read        | 26484817584
idx_scan            | 4554128
last_idx_scan       | 2025-10-10 22:02:50.987532+00
idx_tup_fetch       | 7418587674
n_tup_ins           | 921064234
n_tup_upd           | 0
n_tup_del           | 0
n_tup_hot_upd       | 0
n_tup_newpage_upd   | 0
n_live_tup          | 6484485348
n_dead_tup          | 0
n_mod_since_analyze | 423101205
n_ins_since_vacuum  | 921064234
last_vacuum         |
last_autovacuum     |
last_analyze        | 2025-09-30 18:24:47.550543+00
last_autoanalyze    |
vacuum_count        | 0
autovacuum_count    | 0
analyze_count       | 1
autoanalyze_count   | 0

> SELECT reltuples FROM pg_class WHERE relname = 
'test_runs_summarized_per_function' \gx
-[ RECORD 1 ]-----------
reltuples | 6.061923e+09

> SELECT name,setting FROM pg_settings WHERE name ILIKE '%factor%' ;
                  name                  | setting
---------------------------------------+---------
  autovacuum_analyze_scale_factor       | 0.1
  autovacuum_vacuum_insert_scale_factor | 0.2
  autovacuum_vacuum_scale_factor        | 0.2
  recursive_worktable_factor            | 10



How can I get more info from postgres on the autovacuum logic?

Thank you in advance,
Dimitris