Its is bewildering that you sometimes produce complications by making programs portable which can already be run portable!
IF there IS a good reason for this (e.g. better handling of multi-user OS ? (which I could not honestly believe...) you should AT LEAST
mention the programs ability to be already run in portable mode
1."Telegram" can already be downloaded an run portable
2. OperaMail (and OLD Opera browser with built-in mail as well!) can be run portable by
a) editing "operaprefs_default.ini" and
b) adding (or changing the line to) "Multi User=0" under [System] as shown below_
Multi User=0 ; If enabled Opera will use Windows profiles to store individual user settings