[mister_hn]

I would be careful with 4a.

Setting it as default SMS client prevents to get 2FA tokens from applications like Amazon, Dropbox, Paypal, or at least, they come with a huge delay.

[Abishek_Muthian]

How come? SMS client functions independent of the GSM stack, I haven't faced any issues due to Signal being the SMS client for several years now.

[mister_hn]

As I switched back to the default SMS app, "magically" all the 2FA tokens are delivered in less than 10 seconds.