Only a matter of time until we see "OpenWarden", just like we saw the migration from Redis to Valkey.
But let's be honest. "enshittification" here really means "I don't want to pay for my tools and I want it completely for free forever."
Just look at the reactions towards the single UI change made in Firefox on HN [0] and already the complaints are there. Even if you charge your users $1 to remove tracking it is somehow "enshittification" because $1 is too much to pay for software maintenance.
The real cost of maintenance is the amount raised in VC capital (Bitwarden raised $100M) or $600M a year (Google paying Firefox). Donations won't cover the capital needed to fund Firefox or Bitwarden's development at all.
"Open source" is only sustainable when someone else is paying for that maintenance. Small donations will only take you so far until one core developer says that they are underpaid.